RE: sight trouble
LOL! I never even tried shooting it for groups like that. I knew it was wrong, knew exactly what was wrong and took the bow straight home to fix it. After shooting compounds for 20 years in competition, in just about every style they've got a class for, and hunting with them a good 5 years before getting into tournament shooting, you learn a few things about setting them up and tuning them.
Experience is still the best teacher.