I fly both a bladeIII 4.9 and a 3.5 bullet and use both in a buggy.The blade has lots more lift than the bullet so you have to bare that in mind when you fly it but in the buggy i love it.I have only had a buggy for about a month and obviuosly just used the bullet for a while to get the hang of things and then started to use the blade and find it is the dogs what's it's..I use a maui magic aviator seat harness when static flying the blade and it makes flying much easier going on the arms...haven't used it in the buggy yet but then again i haven't really needed to.The blade seems to be a much smoother kite and more controllable than the bullet...cause it is smaller it turns really quickly sometimes too quick and just spins right into the power zone.I have only been ejected from the buggy a couple of times using the blade but that's all part of the fun,just remember to fly it low and turn it quite low down in the window and the buggy should still be under you after.Try before you buy if you can but i don't think you will be dissapointed.