Higher than 0.11 would be much more slower then. But then who would consider up to 0.12, 0.13?

I read that blues players like BB King uses 13's. That could really break a finger or two. 

you're not playing slower with heavier strings, that's a myth... you just need stronger fingers, with more endurance, but otherwise, you can still legato like thunder. Vibrato and bend are pretty hard to do on .013, but then again, after a while I did get used to it.

more harder ? that must be way too much hardest
what i'm saying is that Jimi Hendrix used to do that on the strings : boil'em. And ppl says it's a good method, it works, the new strings are in tune faster, and they also last longer.
as a science guy, the only thing I can relate it to is the quick heat / quick cold process on steel, which does modify its properties.
and yes, i'll try one day... i don't care about spoiling a set of strings.. it's all in the name of science !