I am making the switch from a Bladetech DOH to the RM, I'm just getting into IPSC from rifle, so my comments aren't worth much. I have the left handed model, works great, setup went fine, no issues using it with my STI 2011. I like the fact that I can use it with my carry STI VIP also, just makes practice in the basement with the .22 upper nice with both guns. The reason I switched to the RM was to get a little more room for my thumb to ride on top of the safety while the gun was holstered. From the dry fire I can tell it works better, my draws seem smoother, and the gun is very secure both locked and unlocked. I'm glad I made the switch sooner rather than waiting.