Quite agree,it can be a huge amount of fun.BUT,I certainly wouldnt advise it until you fully know and understand it.
It takes many laps in all weathers to really get to know it.Z is good for under eights,light flywheel,sport cats on a Japspeed system,is about the sum of mods to the car.The Z is very well suited to the surface changes,gradients etc.Its a matter of staying of the middle pedal and only using it when you need to,and that isnt many times;)