PSA: A cheap hair dryer saved my warped book board in 4 minutes
Grabbed my roommate's $12 Conair because the cover board on a rebind had curled up after sitting under a heavy stack for 3 days, and waving it back and forth about 6 inches away while flexing the board slowly flattened it right out without cracking the grain, so has anyone else used heat to fix a warp, or am I just lucky it didn't ruin the board?