Exactly...... Don't ever simply flat base unless you want to end up doing an awesome scorp eventually. Always, always stay slightly on edge...I have a C2BTX board as well, and it will save your ass compared to a regular camber board, but I still never ever, ever, ride without engaging an edge. You can ride out a landing flat and most cases be fine for a little while, but if your not on an edge ASAP you might end up on yer ass pretty quick.
I think of it like this... If you're actually flat basing, you're not actually snowboarding, what you're doing is standing on a snowboard. My 2 year old can stand on a snowboard (flat-base down a hill), but he sure as shit can't snowboard.
May as well stand on a sled.