best way to stop a linear puncher

lately linear punchers have become popular. it seems as though everyone has a different way of doing it. i built i slip gear linear puncher, but i am trying to figure out the best way to make a stop for a linear puncher. (with out bending things that is)

It seems like most teams are using the string method or some other type of impact dampener. Anything that increases the deceleration time of your puncher will work - the problem is building something that actually lasts more than a few shots. You might want to check out these threads: