I was curious and tried to lodge a barrel between the pistons and see what would happen. It completely halted the piston, and made me unable to complete the level. I tried jumping into the piston, and it instantly killed me.
Getpos Info: setpos 1278.192017 -628.158630 247.829697;setang 14.290766 -4.386720 0.062573
Mapname: bm_c2a3b