I've been running some 6UL's for about a year.
15x8 nickel finish:
1. I've been running a 215/45/15 toyo t1r on these. It give the tire a slightly stretched look. (not a very good tire IMO)
2. I'm running stock studs. I do not have spacers. I do not rub at all. Although clearance from the front tire sidewall to the strut is pretty close.
3. If I switch to a a 225/45/15 later, I'm probably going to have to get a small spacer to keep the tire from rubbing, as the toyo's I'm currently using run on the small side.
4. The 15x8's I have come in about 12.5 lbs. each. I had to order them in advance, and wait a few months for them to come in.
5. Nice thing is, I haven't seen one car be it miata or nissan or honda that has these wheels around town.
-bryan