so what difference does it make?

that's coincidental timing, I was thinking about that as I struggled to steer my TC without bashing off the sides last night at Morecambe. Been ages since I've been able to drive laps without crashing, I'd been looking at various areas of my car, thought about caster, I'd been running 2 for a long time mostly because I broke the standard 4 degrees hubs. See this handy page:

http://home.scarlet.be/~be067749/58/

Basically more caster gives stability and less aggressive steering, less caster is the opposite. Touring cars have very little caster, buggies have lots.

So I'm going back to the standard 4 degrees for next week to see if it helps me drive.