Anything not covered in your build thread?
just that I would like more eye relieve if I had to do over.
They didn't have the SPR mount done when I ordered. I should have wailed but thought the extended would do fine.
I believe the extended is a stronger mount but I would like the choice to run it out a little more than it is.
I put the rubber butt pad back on my stock and with a little change in technique I am fine.
If you shoot nose to charging handle you will definitely want to go with the SPR mount. Also as you know its not QR so three screws need to be addressed to get to the irons......not enough clearance for me to use my irons but I think that is more the scope than the mount.