ok, heres the deal, Ive been playing on a ML 37 for about 4 years, but about a year and half ago I bought a .470 callet (really free blowing) I played on the callet more than the bach since then and have grown accustomed to the larger bore and I really like it. Now I go to play the bach and I find it to be very restricting and I make a lot more mistakes on it than I do on the callet (missing notes, losing tone on the dynamic extremes the whole shaband) is side by side tests I always play better on the freeblowing callet. ok so heres the deal, I only use the bach for classical and large symphony groups. so heres the deal, I want the bach sound, possibly darker than the average 37 since I already have a very bright callet Id like to cover both extremes. but I want free blowing. so darker than average but not sheet bracing dark, classical bach sound and free blowing, hopefully comparable to a .470 callet. It may not have to be as free blowing as the callet since that would be hard to match, but Id like something to make switching a little easier. thanks for any imput.