I carry different N frames and am looking at El Paso Saddlery holsters. I use a thumb break belt slide now but it's cheap and needs replaced. Since my carry guns are 25-5's and 28-2's, I would most likely have a problem with the strap fitting the different hammers. Since I'm cheap, I'd like to get one holster that will work for both. Can anyone tell me how good the retention is on the "Street Combat"?