I would like to know if you are aware of competent professional violinists that place the thumb of the right hand on the leather of the bow (as opposed to the traditional Franco Belgian way of holding the bow with the thumb somewhat stuck between the stick and the frog).
TY.
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(Edit): Since the word "dumb" has now been edited out of the original post, some of my response it no longer applicable. But I am still not a fan of assigning fancy names to things to try to give them higher status.
Buri
The leather is literally there for your thumb. I don't know why students are trained not to use it.
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