The launch theme was clusters, and I started off with the Callisto on 3 x 1/2A3-4T with Q2G2 igniters. I'd wanted to go 3 x A but discovered I didn't seem to have three matching 13 mm A motors. Never mind, it flew fine on 1/2A. The wind had shifted since they set up the field, so the Callisto blew over the flight line and came down on someone's popup. Nothing damaged though.