I haven't seen the Nevada Gun Leather holster (I need to check them out); however, I have used a Bianchi 9R Agent inverted shoulder holster for my J frames for over thirty years, and it is a great holster for a snub. Bianchi also made them for K frame snubbies, but I don't have one. It is a "clamshell" design with a strong internal spring (leather inside and outside the spring, nothing to mar the finish or dig in to your body), and the only way the gun is going to come out of the holster from jumping down to the ground is if you jump out of a perfectly good airplane and your 'chute doesn't open, in which case the gun coming out of the holster is among the least of your concerns. Frankly, I would like to pick up a similar holster for my 2.5" Model 19, it's a great method of carry for a snub, out of the way, fairly comfortable, and readily accessible.