Yeah tried both, still, never gone over like 5-10 ft and the ones I try require around 40.
e: Also, I have tried both bmx and mtb, bmx does seem a tad better but I still never passed the 10 ft barrier, and it seems useless to even do a bbm if you can't get those 40~ ft spots[with other elements included though]... I'd like to see some input regarding the possibilities of a BBM to get that high and maybe some examples cuz I remember some getting decent heights back in 2007 but I can't recall specific ones since it's been too long.