Wes,
I talked to Michelin Sport Cup guys...
265-35-18 or 265-30-19.
They say, since the contact patch is almost the same, the change in sidewall height may yield 1-2% improvement. In his opinion, not enough to justify the huge diff in price ($60+ more).
Also, if you went to 18" rears, then Kuhmo is available in 265-35-18.
so I went with 18" rears.

Since I don't have a lovely spouse that comes to every event, I bought a featherlite trailer...now I am really poor :cry: ... no more mods for awhile.