Tools will definitely scratch it up....the wood block method works perfecty though - I used vise grips and a vise to remove mine, and mangled it beyond recognition, but I had no intention of having it back in it's casing ever again anyways.....If you are attempting a pot-mod on the DX laser - you can save your time and agravation by not doing it, since it wil not help anyways ! But when you do this (if you decide to) make sure the button is facing down - otherwise you could snap the board in your attempts to undo the tip.
G !