good analysis here and we are in identical situations, i am struggling with the exact same. i was pretty close to pulling the trigger on the enkei 18x10.5 +38s all the way around, but got nervous about the recent failures. I am still searching for other options, like you. keep us posted with what you decide! I jumped on 2 of those 305 NT01s last night, just trying to decide if i want 305s or 275s for the front (obviously the rims factor into that as well)! Thank you for posting the link.