used them 4 times for basic setups,twice on my rst and twice on my 2wd cos,was only happy on the 1st rr setup on my rst.
i bought bits from euans car,after it clocking 188 mph it cracked the block or something,it got rebuilt after that but was never used in anger like that again.his words.
as for scottish tuners i wouldnt use any unless i was stuck.