My opinion may not be valid
Being Le, I have a point of view which may differ from many, it is however an opinion based on YEARS of everyday carry much of which was plain clothes both open and concealed. Retention other than friction is mandatory, period! Unless you can see into the future (in which case I would not have my screen name) your critical incident will unfold moment to moment. I wouldn't wear any holster I couldn't do multiple cart wheels while wearing without the gun coming out. We're talking about open carry so the bad guy knows you've got it and might want it for his own,ever seen one guy distract/start talking to someone while another comes up from behind? I've seen guns fly out of open top holsters more than once, you can't replicate the forces involved in training because they would lead to the serious injuries that occur when real! There's a reason cops use retention holsters, and we usually know more about what we're potentially getting into than you likely will, we're sent there, not just present when heck breaks loose! I like the Don Hume rig for my snubbie, it covers the rear of the trigger guard and front breaks, has to be unsnappe for you to operate and can't be rear snatched even if unsnapped. Great thread