have yet to jump it due to the lack of a roll in, but from using it as a quarter i can tell it has some great pop so you get some good airtime. i highly recommend getting some long, pressure treated 2x6's and line the base. it will provide a spacer from the soil protecting it from being rotted away. now its 5'5" with a 9' rad. depending on speed gap will be from 8'-10'