I got a chance to try the new Caldwell chrony today. This thing works great, not one error and then I just email myself the shot string from my Ipad. No more little paper scrolls to hang on to.
Thanks everyone for this thread. I have used the green shooting Crony and it worked. So I thought I would buy the blue one. After reading this thread and doing some research I bought the Competition Electronics digital. I feel like I made the right choice. I also bought the light . I will get some other options later.