1) What is target panic?

2) How long should arrows be? I guess I'm asking how much arrow should stick out from the riser. Also, can u add extra length and maybe heavier points to offset arrows that might be too heavy? I am shooting 2117 with 125 points with a 55# @ 28" recurve. I have the arrows at 30" not including the points. arrow flight seems to be good. with 100 grain tips they hit with the arrow sticking out form the target to the right when I shot them without feathers.