Rob, i have just installed the Sphere Comp in my 4wd tonight with the 3 star motor, hopefully have its 1st run this weekend at the mid-west regional
fits nice and the setup of the speedo is straight forward, but lots of wires.
From what i have been told the lowest punch setting is very good on low traction surfaces, almost like traction control. Would of been handy at the tiverton national if you could use brushless.