Replying to Questions on Salomon Impact 10 Boot

Hey,
I have a few questions on the Salomon Impact 10 Boot. I really need a new pair of boots this year and have a great deal on these. Salomon boots fit me well, but I haven't had the chance to try this particular boot yet. I'll obviously try it on before I buy it.

1) The boot has a flex of 110. I really don't know much on Boot Flex. Can anyone tell me if this is a particularly stiff or flexy boot? I have a Performa 4.0 boot right now. Is it comparable in flex?

2) I ski both park and all mountain. I'm moving to Banff this year, so I'll be skiing pow and shralping gnar when its available. Skiing park when its not. Is this an appropriate boot for the type of skiing I do?

I weigh 145lbs and am an EXTREME SKIER.