Thanks for the feedback. My OEM runflats look like they've got some wear on them so after I take them off for the winter that might be the last of them for me. Based on your feedback and others on the forum I've made my decision to replace the stock 215/245 setup with similar size Michelin PSS. Don't think I want to chance it and upsize to 225/255 even if the majority of people aren't seeing any rubbing.
After driving it like that for a while I'll decide if I want to replace front sway bar with the OEM E9x vert kit to help deal with the change in turn in and extra ride mushiness. You sound like you've already modded your suspension but I keep reading the stock setup might get "too" comfortable for us who opted for the sports package.