Rocket only lists D12 motors for use; however it also says can reach 1600 feet, so I saw no reason nay t' be able t' use a C11-3...besides, it's only about 4oz! Blimey!  Motor seemed t' be a very good choice since rocket lifted off fine with authority and reached about 700' (estimated).  Ejection was just past apogee and rocket came down on streamer; however it hit some hard pack snow and broke a fin (even with heavy fillets and holes drilled through body tube for fin glue points!).  I think havin' 3 fins increases t' chance o' breakin' a fin on landin' compared t' 4 fins in me opinion since thar's 25% less fin t' disperse t' landin' force.  I may try a small chute next time.