I have been using a B&R Recoil pad jig for over 10 years now. It is easy to use and set the recoil pad angles. You can fit a pad pretty quickly with this tool. Take a look at one on Brownells website.
Regards,
Richard Hilts
Hilts Custom Rifles
I have been using the same B Square jig for 27yrs., along with my 12"disc sander. Much depends upon the skill of the user, regardless of which jig you might choose.