what do you weigh?
What do you ride?
How hard/fast do you ride?
I've busted just about every part of my frame including breaking the frame rails all the way through in 4 different places over the last 3 years but I'm a big guy and I ride the dunes pretty hard/fast. On the contrary Bfuss rides with me most of the time and he's only suffered a few common cracks but he's at least 50lbs lighter.
Known weaknesses, the plate on the underside cushion lever bridge (87s), the left side swing arms bolt plate (both sides, in & out), top plate of the seat latch cross member.