T' launch theme be clusters, and I started off with t' Callisto on 3 x 1/2A3-4T with Q2G2 igniters. Well, blow me down! I'd wanted t' go 3 x A but discovered I didn't seem t' have three matchin' 13 mm A motors. Blimey! Never mind, it flew fine on 1/2A. Blimey! T' wind had shifted since they set up t' field, ya bilge rat, so t' Callisto blew over t' flight line and came down on someone's popup. Ahoy! Nothin' damaged though.