After much research online and discussion with various people (including ASM at BMW dealer) will have set of staggered Michelin PSS (non RFT's), installed today ( on RF status on left rear this am). Have to figure out cover on what was spare tire cover to see whose pump and a slime kit will fit. I will advise you all if this is as transformational as I'm told to expect (sort of got used to RFT's )