I am going to help a friend tune her Razortec for hunting. Her husband and her have been trying and she is going crazy. She says that her bow is shooting broadheads tail high. I don't know how much but it is about 6 inches low at 20yds. I am not familiar with the cam and a half but I want to know if there are any tuning tricks that I need to check before we start again. She is shooting carbonaeros and 75 grain wasp broadheads. They are on straight! Any tips would be helpful.