My brother in-law is having a problem that I can not figure out. I think maybe it is his form or grip but please give me some suggestions to check. His bow is as far as I know, properly tuned (pro shop). He shoots, sights in and then with-in a few more shots is again low and to the left. It seems like the change in the sights would elimate this but it doesn't seem to. I'm sure a drastic change will but when that is down he is way off. Everytime I think he is close, he starts low and left again. Any ideas?