I just put the .105 - .50 set of D'addario Slow Wounds on my P-Bass before practice yesterday and they made it sound huge! My Ampeg B100R was set to 7 and it was shaking the basement and cutting through the drums and guitar like never before. I do still have an issue where the E string isn't as loud (ballsy) as the A string. My pickup looks to be uniformly level underneath the strings. It still rocked though.