you seem to be overlooking the difference in suspension - different struts run at different diameters. the 12mm clearance to the strut you have can quite easily become 1 or 2mm with a change of susp (12mm is bugger all as it is)
2 quick examples i can dig up (not the best but show what i'm trying to say)
first is a set of struts, use typical spring seat and i'd assume would be similar to sydney kids setup (note diameter of strut)
second is a set of height adjustable struts (which most people referto as coilovers, even though normal struts are technically coilovers too) - you can see the added width and the marks in the thread where the wheels have rubbed, which is actually very common in stageas
now 'floody' is talking about running 'coilovers' so all i am doing is warning him about problems he may run into
this is what 'slammed' was. at a guess roughly 300mm eyebrow (i'm running 320 now that i've lifted it a bit)