Originally Posted by JOE SI

I'm sure plenty of ppl do, but on the tracks I alternate racing on the blade is the right option.
What is the better option for clutch spring?
I was using a hard xray ultra stable spring and liked it but felt like it was never giving me the bottom end out of my murnan RBM3 I've been looking for.
My last race I showed up late and still had to put my motor in and set it up, including the clutch, so I asked a guy that knows exactly how to get hat I was looking for.
He gave me the numbers and to use a the med spring (xray) and whoa the car was a rocket. From now on its what I'll be using.
Does anyone have an opinion for why the med spring was better?
Started the season with hard spring and yellow shoe on the high dynamic and changed to med spring with red shoe in the high dynamic