Joe - I'm Running FK AK Streetlines.
On the front the ET was Originally 59, on a 10mm spacer (ET49) no scrubbave at all. With 20mm spacer (Et39) I've rolled the arches slightly and rolled the screw over and I only scrub under extreme cornering or turning a corner over a really uneven surface.
On Thd backs I'm Running 9.5" x 18's on ET49 with no issues.
On both The above you must remember I'm also running 215/35/18 tyres all around which help ALOT with clearance so bare that in mind :)
Hope That helps gents :)