I can usually shoot consistant 2-3 inch groups at 30 yards under good conditions.
Im more than happy with that considering I dont shoot at a deer over 30 yards.
I think thats a good group. At least for me. Definatley not great, but good.[:-]
Keep practicing to maintain a consistant form and fine tune that bow. Your groups sound good but there is always some room for improvement. Dont obsess or worry about it too much though. Just set you a goal of bringing those 20 yard shots into two inches consistantly and over time it will come. If not, dont worry about it. Your groups are still good. Unless you shoot 3d competition where you have shots out to 50 or 60 yards. Then you really need to tighten em up.