I too once belived in the heavier gauge string as a superior tone source. However, thanks to the graciousness of B.B. King I learned that a lighter-gauge string offers superior playing comfort ... try it, you may like it.
Billy GibbonsLightnin' Hopkins taught us, "the rubber on a wheel is faster than the rubber on a heel" and Muddy Waters taught us "you don't have to be the best one; just be a good 'un" .. that just about says it all, always strive to be a good 'un.
Billy Gibbons