I ran tubeless last season with Ultegra wheels and bontrager cx-0 tires. Never had any issues and they are not tubeless tires. I wouldn't worry about finding a tubeless specific tire because all that means is the tire is heavy. Using tubulars in cross is stupid. I can easily change tires for the conditions, not worry about ruining a $100+ tire and run just as low of pressure.
That's not true. Tubeless-ready is not the same as tubeless. Maybe the Bulldogs are heavier (50 grams/tire) than the Bontrager tires you have, but they have bigger knobs as well! And they should work better at lower pressure. I would be surprised if your Bontragers work better (no burping, stable when turning) than the Bulldogs @ 30 psi.
Personally I feel a big difference, the rolling resistance is noticably less for my tubular setup + I can go with lower pressure without burping, and it makes me go faster in the races. I glued the tires late autumn/winter 2010 and I'll be doing my first reglue autumn this year. Not a single puncture. What's stupid?
I have mud-ish tubs (Tufo Cubus) and they've been fine on my only wheelset for two cross seasons. Of course this was suboptimal for the really dry races I've done, but on the other hand, that's less than 10% of the races...
If you have another opinion than mine, that's perfectly fine, but since I suppose you haven't used tubulars(?) I think it's a bit over the top to say that using tubulars in cross is stupid without any real arguments.