I have Eibachs and a strut brace. I use my OEM wheels with 15mm spacers on the front and 265mm rear tyres (hence no rear spacers) when driving on the track, and CSLs with no spacers on the road. I've pulled the camber pins on mine but made no adjustment to toe or rear camber. With this set up I have markedly less understeer but the steering can be really twitchy on poor quality road surfaces, especially with the very low profile tyres on my CSLs. On one road in particular (the Hog's Back near Guildford) the surface is so poor that at speeds over 70 the front end is really unpredictable - fortunately the limit is 60mph 