Re: rem bolt stop....the side jobby
To some extent I think it's up to you. How far back do you want the bolt to go? I put one in that was "moved back" to use the alpha magazines without chopping on the front of the receiver. As for up and down, how far above the stock line do you want it? They usually look better if you rotate the receiver rather than just shifting the cutout up/down. Also, if you make the pivot hole blind from the bottom then it won't show.