I dont like the Serpa. most of the guys out here buy them cuz it's BLACKHAWK!! I have a safari land with the thumb roll retention. Far and away more secure during combat no chance of knocking off of safe or half cocking or even full cocking (even though when i go out I'm chambered and half cocked on fire) i hate seeing POGs walking around the FOB with their high speed **** and you can tell their arms swinging has knocked their selectors. I wouldn't know about riding comfort with the pistol in front as I just learned how to ride up in MD and all my guns are still in Texas. but i can imagine it sucks but I have issues with holstering in the small of the back. It's not a natural draw, it's slower, easier for someone to disarm you if the situation arose, and for me less concealable back there. Just like wearing all your riding gear you sacrifice a little comfort for the greater protection right? I think that's why I will look into the shoulder harness if i chose to carry while i ride, or even a snub nose in the small jacket pocket would suffice. It's cool to bust out a big 45 or something that just looks menacing but truth be told a gun is a gun is a gun and it should only be drawn to eliminate a threat to life, whether i draw a snubby 38 special or a DE .50 who ever is on the wrong end shouldn't have time to figure out anything other than "I'm HIT?!?!?!"