Well I'm on a T7 which is stiffer than the Custom X with the same camber profile. I don't have a problem but if course I have to put a fair bit of weight on my back foot. Terje rides it and I'd say he's riding more powder than all of us probably put together! lol
You're right, I haven't ridden reg camber in so long I forgot you just have to make sure you have a big setback, which isn't required as much on the rocker shapes.
PowderHound and TreeNinja