I'm adding the direct links to the cx magazine stories on tubeless. My experiences were only so-so, but I'm only a case-study of one, and I didn't mess around too much with my setup.

'cross is all about riding as low a pressure as you can, and tubeless did allow me to run about 5 psi lower than a tubed wheel. I didn't want to push the envelope too far on a home-made tubeless setup, so I was still about 5 psi higher than I rode in my Flexus tubulars.

Flats are obviously a huge issue in NM. With tubeless, the sealant does work, but it's a matter of how quickly. Maybe we need a sealant thread. When you start at 30 psi and it loses 10 psi while it seals, then you need to change wheels, even though the leak is sealed. Last year, when someone was in the pits with a pump, it meant on the next lap my wheel was good to go again.

For whatever reason, I've had better luck with Tufos sealing than my home-made tubless even though they had the same sealant. Clearly this is just a preliminary oberservation--I don't have enough data points to draw any meaningful conclusions.

Tubeless is a fun and cheap experiement, so I'd say go for it. They ride nicer than tubed tires. However, for those looking for an even nicer ride, I'll add that tubeless does not work nearly as well as a nice set of tubulars.

Perhaps my experiences would be dramatically different with other tires. Another reason I'm only ho-hum is I didn't really care for the Hutch Piranha in the rear. It worked well in the front, but it would lock-up regularly in back. I think the Bulldog would be a better choice for a rear tire. I was too chicken to experiment with non-tubless tires. Chris has done so, as have many others, with great success.

http://cxmagazine.com/going-tubeless-cyclocross-racing-intro

http://cxmagazine.com/trying-tubeless-cyclocross-tires-setup-part-ii

http://cxmagazine.com/going-tubeless-cyclocross-tires-racing-recommendat... *

*Michelin tires are listed on the "worked well" list. Notubes.com recommends against this, and I've seen numerous examples of failed Michelins--the sidewalls fail. They evidently only work well on wide rims (Stans 25mm wide rims) where less stress is put on the sidewall.

I agree with everything Pease said. Further, in my experience the folks who have been able to make it work are smaller, lighter riders, or those who corner less aggressively. So, if you're 135lbs and do a lot of trail rides, these might be a great solution. If you're 175 lbs and you us them mainly for racing...tubulars may be a better option. Gluing isn't that hard, and we've been doing it for decades.

With Tufos new in the $50 and under range, I'm not even sure why one would spend the time to make a tubeless system work unless it's just for the process of doing it. Were there not goatheads in NM, we likely wouldn't even be having this discussion.

At least a couple companies (Neuvation & Williams) are making affordable tubular wheelsets with 'cross in mind. You can also find good-quality Mavic & Ritchey tubular wheels used that are very suitable for 'cross.