
I've been using the Cecilia Sanctus violin rosin for a few years now, upon recommendation from my (then) teacher. I really like that it is grippy and helps to produce a rich, smooth, and gutsy sound. But there are two annoying drawbacks.
First, the rosin cake keeps chipping off... from the day one! Without hitting anything!! Sometimes just putting the bow hair on it to "start" rosining causes it to chip off. I protect the rosin from hitting the ferrule with my thumb and have never had such an issue with other rosins before. It had just been purchased at the Cecilia booth at a VSA convention when I got it, so the issue shouldn't be about authenticity or freshness.
Second, the rosin dust is very very sticky. Cleaning it off the strings and the instrument is not easy; the strings always have some residues left, and the violin varnish underneath has become more matte than in other places, which concerns me.
The rosins that I've tried in the past include Cecilia (Andrea) Solo & A Piacere, Baker's, Yumba, Petz Vienna's Best, and Liebenzeller. I haven't tried Leatherwood, Guillaume, or Magic, among those that are frequently mentioned here. What would you recommend that I try first? I'm looking for one with similar characteristics without the annoying issues above. Thank you for reading!
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You could also try magic rosin. That rosin is known for being really grippy. They have two versions called 3G and Ultra. The 3G is the normal one while the Ultra is even grippier. The 3G is plenty grippy already in my experience so I would probably start with that one and only do the Ultra if you find that you still need more. I think cellists tend to go for the ultra while violinists and violists tend to gravitate towards the 3G, but of course there’s probably some overlap.
I have leatherwood for my viola. I was at a conference and got to try it. And got to find out which mix I liked best. I would want to actually try it to find out which mix was preferred but, if you know you like super grippy maybe you would not need to try it first. I would never have spent that kind of money on rosin had I not actually tried it and heard the difference.
I also sometimes use the eco version on my violin bow.
And a friend of mine who plays flute and piano won a cake of Guillaume Rosin when Tonic had the challenge. It is sitting in my case waiting for me to try it. But, since I haven't tried it yet, I don't have an opinion for you.
Leatherwood for me, is really smooth feeling so may not be what you want at all.
@Christian Harvey @Jeff Robbe : Come to think of it, the rosin cake that the teacher had lent me to try before I got my own wasn't as messy as mine. His was the old Andrea version, though. It's interesting that Jeff had a similar experience with Cecilia Solo because the one that I had back in 2019 didn't have the issue, either. (This Sanctus is circa 2022.) Maybe the company had a period of producing bad batches at some point?? Perhaps it's worth contacting the manufacturer about this.
@Laura McDermott : I wish I could try different Leatherwood varieties before purchase, too! It's too pricy to purchase blindly. I don't like too smooth, but not too grippy either, which makes picking the right variety harder.
Based on your description of the stickyness of your rosin, you need lighter one that is less sticky. I would not recommend you purchase more dark grippy rosin. Maybe try something simple like Hill light. It is grippier than other lights. It is a common rosin. Someone you know may have some to try. It is also inexpensive
As for the climate, I live in the Mid-Atlantic region in the US. Humid subtropical climate with all four seasons: mild spring and fall, hot & humid summer, and cold & damp winter. The ambient humidity in my practice room (which is just a corner of my bedroom), according to the hygrometer, is around upper 50s - mid 60s% in the summer and around upper 30s - lower 40s% in the winter with the humidifier on. (Without the humidifier, lower to mid 30s%.) I keep a Boveda in my violin case throughout the year. Hope this extra info helps.
Fancy Rosin: Leatherwood 50-50 blend (what I use).
I recommend most people start with Bernadel. It's a good all-around rosin. Lasts forever and it's inexpensive. When I went bow shopping they handed me a cake of Bernadel to use on the bows.
I started using Leatherwood Crisp and Supple rosins for all three (string quartet) instruments as soon as the Australian company announced a half-price special some years ago and these were all I used at home. But at those prices those rosins never made it into my cases and out of the house. I carried (cheaper) other rosins until I finally bought a cake of "50/50 'Bespoke'" Leatherwood for my violin case. But I find no advantage of that vs. applying alternate strokes of Crisp & Supple. And now Leatherwood "Bespoke" has come out with a "Concerto" variety of rosin that it claims has some special unnamed ingredients (and warns that it has "pine" that might irritate those who are allergic). But is good stuff. This last is in the $100+ category at this time.
More3 recently I have found that "new" Guillaume rosin in the green "tin" cylinder, for a reasonable price, seems very nice on all my bows and instruments. I have found it especially nice for my 25 year old ARCUS (CF) bows.
Meanwhile, I wrote to the Cecilia rosin company (the email address listed on their website) and they offered to send me a replacement. (Yay!) I still want to try alternatives, but this is a very nice gesture on their part.
I'm currently using Leatherwood Concerto, which may be slightly better than those in some ways.
I used to use Andrea Solo, then Cecelia Solo and then Signature when they changed names, but either my tastes changed or the rosin changed somehow.... I can't use it anymore.

By the way, while googling a new cake image, I found a similar complaint among Amazon reviews. Although this is only one complaint compared to 17 other 5-star reviews, at least it looks like some batches are more prone to this issue than others.
So here are some real world shots of a brand new cake.



As you can see, seen from the above, it's crystal clear. However, the side walls aren't as clear and smooth. That's interesting because the earliest and largest chunks off the old cake were from the side wall (like, the cake was chipped through an entire wall vertically; you can see it in my OP photo, too, near the 6 o'clock mark.) But then it started to chip along the top edges, too... (shrug)
In addition, the side wall of Guillaume rosin is also not perfectly smooth. (Zoom in to the linked image and you'll see. Also courtesy of Concord...)
(Edited to add on Jan 12: Now that I have the actual product in hand, Guillaume rosin's sides are actually okay in person. There are some fabric marks perhaps from the fabric that wraps it, but otherwise it's fairly smooth.)
And @Mark Bouquet , that's an interesting observation because it looks like all of the Cecilia rosins come with flat top with sharp edges, and @Jeff Robbe said he had the same chipping issue with Solo. Maybe there's something to that theory??
Anyhow, my Concord shopping cart now has a Guillaume, Bernadel, and Magic 3G. (By the way, this is the only major retailer that has the Guillaume rosin in stock. I wonder why??)
@Gordon Shumway :
I've been using the same amount/frequency as all the other rosins that I've used in the past, including other Cecilia/Andrea models. That said, perhaps this one needed to be applied in less amount and/or more sparingly. However, that doesn't change the fact that the dusts are sticky and hard to clean. It's unlike anything I've ever experienced before.
By the way, I ordered it from Concord even though the item page said "tin box color may vary"... and guess what, I received the silver tin. (haha) (But the inside of the tin is green... Has it been always like this?) I have an older generation Arcus bow, too, so what @Andrew Victor said about the green tin intrigued me and I was secretly hoping to receive the green one. Well, I won't find out until maybe I get to replace this one; and since rosins seem to last forever, who knows when that will be. (shrug)
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I use Bernardel. My teacher uses Jade. A lot of people say that Leatherwood is good.