Thanks for all the great replies. My main reason for wanting to to remove the cast is aesthetics. I feel like the guns are almost perfect. I am surprised how well they shoot with this amount of cast. The original fitting was done at a dealer. I am weighing the risk of damage undoing the cast vs my desire to make they prettier.
Many shooters are able to do a passable job of shooting, and accommodate guns that don't fit them perfectly. But if you shoot these guns really well in their present configuration, it seems that you are running a very real risk of changing the stock fit to the point where you may find yourself unable to hit targets near as well as you do now.
If it was cheap and easy to ship your guns out to bend your stocks, and then potentially pay the same gunsmith and two-way shipping costs again to bend them back again, without any risk of breakage, or damage, or risk of shipping loss, then it might be a good idea to give it a try. Alternately, you might screw up the fit, and end up selling them because you can no longer shoot them as well with less cast. At very least, I would try temporarily adding some material to the cheek area to your desired amount of cast, and seeing if it screws up your ability to hit targets. In this case, it sounds like it may be better to leave well enough alone.
