I know this is posted somewhere,but couldn't find it.i need a good holster for USPSA using a 4.25 CORE with RMR or delta point optic. It's hard it interpret the USPCA rules for holsters. I'm new to the sport but wanting to get the best equipment to get off o. The right foot.

I answered you in your other thread with the same question. Since you are going to shoot in the Open Division (because of the ports and optics) just use whatever holster you have and shoot a match or two before buying a bunch of stuff. You'll get an idea what works better by seeing what everyone is using. (or you can use my final recommendation in my other post and save some money by not having to go through the progression like I did. ) The only rule you have in Open is that the distance from the inside of the belt to the grip can't be more than 2" and the top of the grip can't be completely below the top of the belt. (no drop leg holsters). The holster also has to cover the trigger opening, but that's about it.