11 sounds a lil more warm... but not really a big difference unless you squim your ears hard to listen... but even telling the difference between .9 and .10 would be a problem... for that bending part, you can re-do your setup, re-adjust your truss rod, or you could add more springs at the back, and 'float' it... then your bending your .11 would not be much of a problem... but if you're fickle minded and keeps on changeing guage(like me), just stick to .10... i'm currently on .11 for my strat right now...