okay well im making a backyard setup and im using about fifteen feet of 7.5"D tube, i think i will rais it about 5" so get some down slope. my jump wont be too big and not much distance between the end of drop in and jump (2 feet). so im wondering how tall i should make my drop in so i have enough speed and what angle i should make the drop in ramp at??
+++++K any help, would be Sick