I have one of the Sandvik, red anodized snap on blurs. And it's been my go-to EDC for a couple years now. I pocket it both hands depending on which hand held it last. And I've had 0 issues opening, handling or closing with either hand. Thumb studs work awsome especially with the quick and smooth speedsafe. If I hadn't just gotten the ZT0350, which in my opinion is pretty muxh the ZT version of the blur, my blur would still be my EDC. Mind you, it's not like I'm gonna chuck my blur, it will stay in rotation.