On stage 10, the most common method was to spring forward with ammo can and slam the bottom of it into the port, then draw while the door was dropping, since it was a pretty slow drop. Engage the back four, back out while reloading, then shooting both sides.
Some went all the way back to the start, some just barely clearing the wall. We didn't call anyone on the 180 in 3 days of shooting.
Some of the Open shooters did it strong hand then went forward, a few put it between their legs, but most went forward first.