you guys should build a mario cart that can drive and fly. i threw this challenge out for my club months ago after seeing the FT video. come race day, each racer had to complete a ground slalom course, then take off, complete an air circuit, then land, and do it all over again. race was 3 laps, first to complete wins! it was stupid fun, no one thought we would be able to actually fly, and all of us proved them all wrong. granted we had a mixed result, but each was great on the ground, and each was able to "fly." we had hoped for 6 racers but 3 died prematurely during testing and were unable to compete.
i had built 4 diff prototypes and each had mixed results. after completing the build of the "Bullet" i did not even try to test fly it (ref the 3 other guys), and instead just showed up and went for it. thankfully my previous work paid off and i was able to jump into the lead right of the bat, then complete almost 3 laps before my prop broke and i was unable to take off again.
it would be cool to add a water challenge, but most fields just don't have the availability.
just my $.02,
me