Howdy I'm upgrading to alloy clutch shoes for my Hyper 7 I have gone for the Answer-rc alloy shoes with 3 sets of springs 0.9mm Gold 1.0mm Silver 1.1mm Black. Decent shoes from what I remember used them a few years back now. I'm wanting to know which spring will be best to run alongside my Hobao Hyper 30 engine with a 16T clutch bell 46T spur. Mostly offroad dirt track bashing and a bit of onroad.