i guess i answered my own question.  thanks nobody.

i wish konig made the Remembers in 15s.  you got me on those rubber parts in trade for the bike stuff right ficus?  word.

RM's = Two piece with soft rear casting. Relatively moderate weight (8ish kg each) & inner section bends easily when abused. The assembly bolts are different to the RS wheel to.

RS's = Three piece with a light weight forged centre. Much lighter than RM, and much stronger. Centre cap also screws in rather than clipping in. If you look at the centre of the RS wheel, the spokes extend onto the cap where as on the RM the spokes stop before the cap where dots exist instead.