The local club here uses them in their monthly matches often. They add an interesting and fun bit of challenge to the match, but I've noticed that the gas springs that they use aren't always real consistent. Kinda like the movers in the wind from the other thread.

I shot CCP all year and, of course, the activator for the clamshells seemed to always be the 8th or 9th round of the stage. Definitely need to plan ahead, just like all disappearing targets.

Keith
A07437