Very kool. I'm looking into these right now

I had a few questions...
1a) Are they M or MH compounds?
1b) Any drawbacks to the compound (M or MH) that you chose?
2) Wheel width in the above pics? 15 x (?) ...reason I'm asking is because the sidewalls look like they have some bulge.
3) do they run wider or narrower than the specs posted on the Yoko website?
4) how are they wearing so far?
Thanks
