Well it's a fine kettle of fish you have yourself in now Mr. Feather. (I just couldn't resist) Double mask your stock get some good grade wet/dry cloth backed emery paper. Back it with a sturdy piece of wood about 2 1/2 inches wide and 6 inches long. Sand parallel with the stock lines using the stock as a guide. I would start course perhaps 100 grit to get you pad down to just about fit and the finish with 180 - 200 grit. If you have a soft pad like a Galazan Period Correct or Old English a few hours in the freezer will give you a firmer material to work with. Others have their own methods but this one has worked for me in the past, now I send my stocks to a profession to have pads installed. $35.00 plus postage is pretty cheap in the whole scheme of things. By the way if you are putting the pad on the Trojan thats OK but if you are messing with one of your Foxes you really need some professional help.