To OP RE: rubbing issues at the bumper-quarter panel junction:
It may be more the offset and wheel width than anything. That 10.5" wheel with just a +22 offset is
really aggressive. I also agree though, that on a 19" wheel, the 30 profile is probably optimal. Still, the wheel dimensions might be an issue for you. And you are lowered a bit too, right? That will just make an aggressive offset more likely to rub, but you probably knew that.
I could be off base on the wheel dimensions issue, but I did a
ton of research on the subject when I was joining the RAC RG63 GB over on M3forum.net with the E46 guys, but for my M coupe. But I'm still no wheel expert....