I'd say if you baked the living hell out of the pumpkin and are thinning it out further by steeping in the strike water that you'll be just fine.
But if it gets stuck you can just stop the lautering, scrape the gunk off your manifold, and vorlauf again.
Primary: air and sadness =(
Kegged: air and sadness =(
Bottled: English Barleywine (brewed 9/26/09 -- bottled 5/5/10)
LET'S GO LA!
PLAY FOR GLORY, THE GLORY LA!