Thanks. Unforch the springs are pretty rusty so can't tell what rates they are, they are eibach though. I will need to take them off and have a look.
I have two rear wheel drive cars also, so front wheel drive on the track is new to me. I guess I will have a play and work out what what suits, the obvious loosen off if wet and stiffen if dry etc. I have got a set of wheels with Yokohama Parada spec 2 and the other set with R888's.