Lefusil - That's correct. I want to get the base of the pad to fit the concave shape of the stock. I would like to find a butt pad that is somewhat flexible with or without heat. Once I get the pad shape like the stock I will grind down the pad. I have successfully done this a number of times and recently did my first leather covered pad on a low end Boswell. I have the jig for this.
Gunut - I used to shoot trap but now spend my time on clays and 5-stand. I learned the hard way that modern stocks do not fit me. I had terrible cheek slap to the point it would bruise, swell and sometimes bleed. Not fun. I'm tall and slender and found guns with a lot of drop at comb and heal really helped. That's why I always loved shooting my fathers Sterlingworth and that's how I got back into shooting older SxS guns with more drop.
Ed - this is a hobby for me and I do not butcher stocks. Why pay a gunsmith when you enjoy doing it and are fairly good at doing it. I'm not a professional but they look pretty good and I learn more every time I do one. Those things I don't feel comfortable doing like checkering and barrel work I send out, although my rust blueing is pretty good.