As I get more and more into lead playing I'm finding that the 11's I have been using for many years is making it hard for me to play great lead. I'm having a hard time bending a whole step and more each time in tune and my fingers tips are getting sore. So, my guitar teacher has been saying for awhile now to give up on the "Puppet Wire" and go with a lighter gauge. Any thoughts or experience on this? If I go down from 11's to 10's how much setup will I have to do on my Strat?