all very good questions, but I have checked almost all. the cams are in the identical position. I am a fanatic when it comes to that. V suppressor removed and flat stop added. cam lean, I sighted the cams with the limb and all appears to be equal but I did't check at full draw. i have 2 bows and the 70# is at 67 which is perfect and 60 is near max, but did not weigh. I do not have a laser but I have 25 hours into attempting to tune this bow. I varied my grip, my twist on the d loop, stance, etc. Noticed some variation but the ONLY way that I could get it tuned was at least 1/8" to the left of center and that is a long way off with a 9" surelok. Arrows are the same for both bows, which are xt hunter gold tip 5575. 70# is working good so I am not sure why it would be the arrow. At center, it shoots down to the right. I have placed it into a vice and leveled it perfect along with sitting it directly into the center position. My next step might be to have it disassembled and inspected. I will be fine for league night with where it is at but it is not cool. Thanks for all of the great suggestions.