to be honest I figured out the best way to hit a fish is to shoot as fast as possiable at them. I use a recurve so snap shooting is very easy. You may miss alot at first but once you get the first one under your belt its like something clicks in your brain and before you know it you will be hitting over 50%. Everytime I aim im always off. so as I always tell all my friends who are new to the sport. "grip and rip" Also there are laser sights that are suppost to help, but honestly I think they are a waste of money. if you have a old laser sitting around it might not be a bad idea to bring it out just so you can see how it defracts in the water, just to get an Idea of where you should be shooting