Folks, there are some very knowledgeable gunsmith/match armorer members over there who have started some regular "conversations" about various aspects of repairing/accurizing M1A/M14 rifles. I don't know if you have to join to read them or not. However, many of the process they discuss are simple and easy for any of us to do to our own rifles. They discuss the reason for the modification, their various experiences with rifles they've modified and it makes for some very interesting reading if you're the type who likes to do what you can to your own rifle.
I've been on there a long time. It's a good site. O0
Is there a link? Or an official name of said forum?
Thanks,
EEL
Try www.M14tfl.com