[Adam Skelding]

Wierdly, I run mine the other way round only a slight bit more slip from the front.
Rear diff as tight as possible, i.e. you can just turn the rear wheel. Make sure you isolate the slipper. I normally drop an allen driver in the rear slipper output.

Diff drease has a massive effect on the diff action and the amount you can tighten your diff. I learnt this through touring car racing and from build tips from Andy Moore 'the UK one'
Thrust Race: Associated Black Grease
Main Diff balls: Associated Stealth Diff Lube