Just got a set of these - Intrax shock absorbers as supplied by Ultima (no fannying around working what will fit or not) The standard ones are proflex, these are the upgraded ones :
The coil-over spring dampers have been specially designed, tested and manufactured by Intrax
Mono-tube construction with internal separation piston ensures accurate damping at all positions
Incorporates thermostatically controlled valves which give uniform damping at all times
Springs are made from the best race quality chrome silicon wire, protected from corrosion with silver powder-coating
Insanely OTT but 50 way adjustable with the knurled ring on top of the shocks. Takes seconds to adjust, that's all. The factory recommends starting with them on full soft and dialling "upwards" until a nice satisfactory road drive is achieved - ie 10 clicks "up" from the bottom.
They then suggest on a track day, working through to find how you like the suspension set, working top downwards, ie 18 clicks down.
To reset, you simply lift the fron and rear clips, put the suspension on full soft and click 10 up on each corner. Bingo, road set up. At the track you simply wind it full up then count x amount of clicks down. Bingo, track set up.
Nice and soft rear set up for the drag strip .......
Am sure Steve can explain why ??????? I am just regurgitating what I have been told.