I started thinking about a quick disconnect scope base for a traditional style 1" scope to mount on an AR. The Burris PEPR is standing out. Any other suggestions or experiences? One piece or two separate rings? Height... cowitness or bottom 1/3 cowitness, or does it matter (would use with flip-up sights, not front tower, and would not use together due to magnification)? Reliable return to zero obviously a must-have.