Hi Dougie, I'd like to check out your other post and see what that turns up there.
and Derek, I agree, the atmosphere will seal the deal. I don't think I could ride 4 or 5 days anyway unless it was really easy. A friend and I did a street ride last year from Taos out to four corners , up to Ooray and everywhere in between and I was wishing for my dirt bike the whole way. Loved that 6,000-10,000' summer air compared to that thick , sticky Texas ( You know ? last August )climate we'd ridden through.