ORIGINAL: G_O_N
so if you start sighting in your bow, do you start at 10 yrds and if you are hitting it perfectly or good then you move up to 20?
you go to the furthest distance you are confortably shooting good groups, then double it! Shooting outside your comfort zone (provided it is safe and you have a good backstop) is the #1 quickest way to improve your groups. Start shooting at 40 yards. You will suddenly realise that 20 is easy!
you are 'shaking' at 20? what do you mean? its normal to drift around a bit, no one is rock solid for even 5 seconds strait, but do you mean to say you are experiancing something that you dont at 10 yards? --just confused.