I don't think it's back weighted, it's a SuperStroke wristlock, but when I was screwing the tag in (Yes by hand lol). The part that screws into the club twisted off the tag. So I saw were if you were using a back weight to glue it on so that's what I did. I used the manual mode the other day. I'm kinda use to that because I was using Golfpad app to do basically the same thing as the shotscope does, I just kept leaving my phone in the cart and when remember it when I was either at my ball or halfway there and would have to walk back to the cart or not log the stroke. It's not really the end of the world if it doesn't work, but I was wanting to try it to see if I liked it.