Up until around my 22nd birthday, I used a Bach 10 1/2E, then came a Schilke 14A4A which changed to the Monette equivalent (BL) in 1998. I guess old age is starting to settle in. For the last couple of years, I can only play on that piece for a glorious 15 minutes, then nothing comes out anymore (swelling of the chops). I now use a B4LD or B6 (around 3C/3D size). My range stayed the same. The sound is not quite as laserlike, but works very well. I think that if I was playing primarily lead and PRACTICING more of that type of playing, I could get used to the 14A4A or equivalent again. I just don't have any reason to.