As you know I like the simple screw style retention devices, they allow quick and easy changes as the holster changes over time. My last two carry guns were the Officers model and now the New Agent. Though not particularly light in weight, they do offer a pretty small package for the .45acp. Through the years these have been the guns I prefer Kydex for and have used the plastic holsters for 1911s pretty much since probably the early eighties, at least. I can not remember the name of that first break front that Cooper recommended but it had some features that I really liked but they actually came into their own when a guy named Kytac started making them.