iirc, I have ET35 19x10 rear with 275/30 tyres and a 5mm spacer, fronts are ET35 19x9 with 235/35's also with 5mm spacers.
Rears caught ever so slightly. So I took 10mm off the arch lips and resealed and painted to prevent corrosion etc. Fronts touch the arch liners on the fullest of lock both directions, but on very slightly so have just left that as is.
Front will be lowered on Friday with -30mm springs that are intended for a TT, so I am expecting a 20mm drop due to all of the extra weight a TT has ie turbos, intercooler, aircon etc etc. (I have removed my aircon). Also plan to fit a TT arb to stiffen things up further in the front.