The horizontal rings with the large windage screws at the rear base are a failure waiting to happen. These large windage screws a prone to cracking if over tighten just slightly and many times you wont even know their damaged cause the heads are stuck or kept in place by the recess in the rear base. When you groups open up or you loose your zero then you might figure it out. No I like the Conetrol's their rock solid. if I had to pick something else it would be the Talley rings and bases. On AR's or any other rifles with a Picatinny rail there are a lot of good options as far as horizontal split rings. No weak link as in windage screws.
I am in complete agreement and got tired of messing with them last year. I can't believe I kept messing with them for all those years. Replacing them with Weaver style bases and horizontal split rings from KF.
