I have raced twice with my truck and feel it is just lacking something... I have the pro4 4000kv geared with a 15tooth pinion running gens ace 6k saddles.

How is everyone setting the slipper ( FT kit ) ? I have mine set to slip about a foot or so, but I am thinking it may need to be set by measurement instead?

I have no problem buying the V2 center diff, I just want to try to get the most of what I have right now.