I have only shot one "one arm trap", a Rafale 50yd crow out in an open field, shot it in the single easily, first up for doubles, easy 2 on the score board here we come, shot the first one where I shot it as a single, big mistake, made me too slow onto the second, tried to catch up with it dropping like a stone, powered through and poked underneath. Went back after the prize giving and shot it again 1/2 a second earlier and had loads of time to shoot the second.......lesson learned (I hope)