I hate group tuning. Always lose a noch or 2 and fergle up my damn fletchings. I just use those little 1 inch round orange gun target stickers and put them in 5 different spots on my Block. Aim each arrow at a different one. If I hit all 5, she's ready at that range. Back um up! Repeat. I don't mind fletching my rigs, but busting nochs usually means cracked rear arrow. At $120 a dozen that can get a little pricey and I seriously don't need to be giving the wife more ammo for putting a foot in my butt!