We feel this is the most ergonomic design out there.  We tried the other connectors on the market.  With the other connectors we were always bumping our hand, the connector was getting in the way of the safety / selector, and when transitioning shoulders they can be the cause of added transition time.

Call us crazy, but we still believe in the KISS method and don't like gear that gets in our way.  The less gear you have with things that can catch, snag, or hook the better.  This just seemed to us like the logical way of doing things, staying perfectly flush with the original design of the weapon.  We think you will agree immediately if you give one a try.