Does anyone ever creep tune to check cam timing? What do you consider an acceptable variance in shot placement? I finished shooting in centershot and nock point, and started creep tuning. I'm about 1 1/2 inches low at 20 yards when I creep about 1/4 inch. Cams look like they are in time on the drawboard, but this makes me think my top cam might be just a hair behind the bottom one. Thanks for your input!