Is it the quantum competition 2 you've got? I think that one handles down to 5 or 7 turns or something daft like that. I don't know of an LRP quantum (sport, prosport etc) that doesn't handle those motors. I've raced with an orion 19 turn spec (V motor) before and that's also a great one but loses out a little bit on the straight (not as much as you'd think though).
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