soft springs and hard shocks is good!
i have stock springs but good hard gas shocks, it rides quite well and has good handeling, it also holds traction on the bumps

i go over speed humps at 50-60 no probs

but i learnt my lesson when i launched it right up on two wheels off a roundabout at similar speed and busted the gearbox crossmember and created an exhaust leek somewhere

wont be doing that again..... on such a steep roundabout