Some stocks bend like rubber when heated and some don't and some return to original over time. If this stock was bent once heating and bending back to original might relieve any stress it has now and allow it to be bent in the other direction. When bending under heat, the operator can feel if he is pushing it too far sometimes and stop. It is not as big a crap shoot as you are being led to believe. there is still risk.

So many guns, so little time!