Nah I'd say go for the 152. If you gain any weight that's the size you want to be on anyway. And a little bigger means you can actually ride the rest of Brecks park and use that one board all over the mountain instead of just the park.
Go ahead, drink that kool-aid.
FS: Forum Sauce 142 $200 plus shipping
FS: Flux SE30 $75 plus shipping