When the Dallas Symphony visited Europe, many many years ago, a cellist went into one of the Suard shops to help a flute player by a nice bow for his daughter who was a fine cellist. They picked up a very nice bow. I had occasion to borrow it a couple of years later, and it was a wonderful bow, but someone had taken a pocket knife and gouged a chunk of the stick away to make a more comfortable resting place for the thumb. The stick, mind you, not the frog.
On behalf of Monsieur Suard, I was quite unhappy.