Well, we got our first batch of Evolution Plus releases in. In case you live under a rock, this back tension release is making big or should I say HUGE waves. This is a back tension that requires NO rotation to fire unlike a hinge style. Only an increase in pressure can cause it to fire. It is triggered based on the holding weight of your bow. And yes, it has a safety so you can get drawn without busting yourself in the chops. When you get to full draw and release the safety, it doesn't fire. Then as you pull into the wall, the holding weight increases to the breaking point and the release fires. It will startle you for sure. Oh, and what's the new 'plus' version. It has customizable springs. No longer do you have to send it back to Carter if the spring weight range does not work for your bow. Just change it yourself. Well, I spent an hour shooting it the other day. If you want to find out if your honest and shooting properly pick this one up. This release is a serious education. It takes some time to get the holding weight set right but it's not bad. I don't have mine set on the hairy edge because it would occasionally go off on my when I released the safety. This is not a flaw. It just means I was harder into the wall when I released the safety. After shooting a while, I was amazed at how many shots absolutely pounded the middle of the X. I'm not saying I didn't have some flyers while learning. Heck I shot one 2 feet into the next bale on one shot while learning this thing:doh: I need to spend some time shooting this but I do plan to use if for our indoor 300 league. It's risky but I think it is worth the learning process.