Jake,
Can you oversheet the N20 to the point of breaking the mast? Using the OEM 8:1.
Forrest
I doubt it. In big air upuwind and sheeted properly, the I20 mast looks like a wind surfer rig to me. After sailing F18 for a while and coming back to the 20, I had to get used to seeing that much bend in the rig. I'm not sure you could do any damage even with 10:1 though.