Hi all ! , My wee cooper s is needing back shocks , I don't know what shocks are on it but it's been lowered 30mm, I was looking at going for short shocks or coilovers , but can't decide, it handles well , but hypothetically it can jump slightly if you take a corner above 100mph (on a track or private land , wouldn't dream of breaking the speed limit), I like the Stance and the go-cart handling and the springs are in good condition, so my question is are the coilovers standard hight or am I better getting short gas shocks .
Any help would be appreciated.

R53 cooper s ,airtec intercooler ,15%Kav , Newman cam ,380 injectors, large K&N , Toyo sports stainless manifold with hi-flow cat , 3" twin exhaust and remap, 30mm drop, drilled and grooved discs,
Will be getting a new Dyno done in the next few weeks, before I changed the standard manifold to the 2.5" stainless and hi-flow cat and air filter it was 224 bhp with 210 ft-lbs torque, feels much better now, revs to 7500rpm now but loud enough to wake the dead.