I put a stud about a inch back from where the stock meets the receiver, its about a 1/2" thick there, works good
How long have you had it like that? Have you tryed running with it slung over your back?
Did you use that point as the forward point ? or was it a single point attachment?
did you put a nut and washer on the out side / right side to hold the stud?
Its only ben a week since the mod. I haven't shot a rifle with it slung only a pistol, it wasn't bad, it can be used as a single or two point attachment, I use it as two point, I would think across the back is better if you are forced to shoot the rifle, as far attaching it I just pre-drilled and screwed the stud in with some gorilla glue, the stock has to be off the gun to get the proper measurement to cut the stud to length, here's a pic, hope this helps