One thing that helped me a lot was I took an older bow like grizz and totally restrung it myself. I took it apart all the way down to every piece. I put back together and lubed all the axles, and all. I then played around on paper for a few hundred shots leanring cause and effect for each change. I would rais and lower the rest, raise and lower the nocking point. Move the rest all the way left and right. Seeing the tears that happen, seeing how much caused vane clearance issues. I then shot way underspined arrows and overspined, and all in between. Shot with my cams out of sync and in sync. Shot with cam lean and without. Played around with every method of tuning I could find from french tuning, to BH tuning, to bare shaft to paper, to laser. It was time well spent.