I bought one to launch with C6 motors on a small field, that's about all that Estes recommends for it. When I got it I thought it seemed small and light for only C6 motors, especially on a small field. I saw one launched on B6 but I didn't notice how high it went and I didn't get to ask the owner about it. I can't find a sim file for it anywhere. Has anybody else tried one on a B6 ?