I just purchased the ofna picco buggy. just finished break in and that went alot smoother than expected. i also considered the hyper 7 tq black but chose the picco for the motor. everyone i talked to and the reviews icould find rated picco motor alot better (stonger, reliability,tuneing,and engine life) over the macstar.28. if you can find a hyper 7 with the hyper .21 motor that would b a graet buy. my friend got about 4 gallons through his and it still screams. hope this helps