Thanks for the advice. I have to admit I'm getting stressed about this whole tire thing! Usually I love thinking about gear, set-up, etc, but it's hard for a course I'm not familiar with at all - or anything like it. My instincts are saying go with Crossmarks and forget the Ranchero - I've ridden Crossmarks and like them and have never ridden a Ranchero. A couple of friends that have done Maui (and have a lot of experience) have suggested them but in the end I should probably go with what I know works for me. Thanks for continuing to provide advice, I really appreciate it! I'm also thinking there's a certain amount of luck to getting through it without a flat, so que sera sera and I'll do what I can to prepare then go with the flow!
Cheers,
Alison