at fist i thought u had the hyper pbs but i guess u have the pro which is like a kyosho. try ultimate 4 a hudy board u need the kyosho 1 the mugen is 4 pivot ball. i've used the hudy board 4 onroad on my vector but find it's not necessary 4 offroad mostly because the rear toe in is set with blocks, u can check it but u can't really adjust it without changing rear suspension plate. i'd worry more about shock length, piston size, 22 degree caster blocks, springs, ect. i don't have any links 2 the race but smitty changed the whole track layout and is having the first race this friday. up 4 grabs is $100 cash and there will be a lot of pro racers there 2 try and cash in on it