Good news from SEMA!!
I talked to Mike from Cooper at the SEMA show this week. He was able to pull up a spreadsheet with several new sizes of ST Maxx listed!! He said they have been having issues with the factory (sounded like strike or union related) so they haven't done much in the last year, but that's about to change!!
He specifically talked about a 255/80R17 size coming out, and he was aware of the 285/75R17 size that Toyo is now making in their new A/T. It sounds like they are finally going to start phasing out the old ST, and replacing those sizes with the Maxx. I wish I could remember, but I think he was saying that a 255/85R16 may eventually come if there's enough demand for it.
I of course put in my request for a few tall but not wide tires that could give mileage gains over the current trend of wide and tall tires. It seemed like he was listening, and since he was able to verify at least one size that fit that description, I'm hopeful that we'll see a few good tires sizes for our needs come from them within the next year or so!!
I did mention that if they do a 255, it really needs to be comparable to the Toyo, not to the current 255 ST, which has a VERY narrow tread. (By my calc's, the current 255 ST is really more of a 235/110R16.)
Anyway, good things are coming! Stay tuned, and keep asking Cooper directly for tire sizes that you want!!
Chris