I picked up a cake of Glaesel cello rosin today, after reading somewhere (I think it was in an article about Edgar Meyer) that using cello rosin could improve consistency of tone in the upper register. I cleaned of all the old bass rosin of my bow, and applied the new stuff, and I was blown away. No more scratchy sound, no more delayed, incosistent high notes. A quick tighten of the hair and my E started immediately. I'm stoked. Does anyone else use cello rosin instead of bass?