Originally Posted by joeshmoe
I think you have to pass the point of elasticity, but at that point it would start to break, interesting though!
Donno if it'll work and this is why....some, if not all, of those layers are laminated together with glue and/or epoxy, neither of which have any type of large plastic region (were permanent deformation happens) relative to metal...basically i think it will be non existent. They also will not have any creep, which is what you are hoping to happen within the length of time you are leaving it weighted.
The layers will likely just delaminate and the board will be super floppy, maintain a small amount of its camber, and sound chattery when you ride it over some crud.
But, I may be wrong! Let us know what happens. I would bet that a little bit of heat might help the process