I agree with Len. I have a zero effect on my Legacy and I love it. I shot a trap door last year, and while I liked the rest it presented the problem of the arrow falling off too easily. As far as the zero effect, make sure that you adjust it according to the directions. Make sure nothing is sliding or loose. I'd like to see a pic of your setup if possible? I might have a few other pointers if I could see the setup pics of the cam too.