Peak 44 blacktooth adding swivel stud.

[Alpep99]

I see on Peak 44’s site they advise against it, but really wanting to add another 10-32 t nut into the stock to put a srs trinity rail onto it. Any advice from someone who has done this to theirs and what the process should look like? I have the tools to do it, just want to make sure i don't screw the stock up.