Early review: this is going to be great - Mantis X X3 Shooting Performance System

Right out of the box, I can see this little motion sensor & app combo is really going to benefit my shooting skills. The device installed easily on my Sig P320. The app is easy to use, and gets you going with learn-as-you-go tutorials. The one thing I’ve noticed is it very occasionally misses picking up a trigger pull (or more aptly, a firing pin release) during dry firing. Still, it’s pretty amazing how it identifies all the little mistakes I’m making when I shoot. I’d say it’s definitely worth the money.