Welcome to the new and improved Proflex / K2 Tech Forum!
You have to pedal to move the chain anyhow, so are you pedaling while braking?
I like my brake lever FAAARRRR away from my grips for one finger braking. I am having an issue with my 957 XTR/Alteks in this manner. I like to slide my brakes where I want regardless of where I put my shifter. I can't do this on the 957. Not that I hate triggers, they just feel wrong.
As for shifting while braking; I'm not sure if I ever shift while braking or not. I try to keep my hands on the grips and off the shifters when braking so that the weight shift doesn't cause an inadvertant shift. If I'm shifting gears, I need power, so I'm not likely to be braking. You have to pedal to move the chain anyhow, so are you pedaling while brakiing? I don't think so. Ok, I'll shut up now.