Yeah, killclimbz uses them. They're stiff as fuck, that's for sure.
I generally like a stiff boot, but the Insanos are a bit too stiff even for my liking.
I had them one day...way to stiff for me.
What do you guys typically ride on the mountain? Why do you like more flex in the boot?
I have 32 boa's and i crank those suckers all the way tight. I just hate the pressure points that these claim to eliminate.