Originally Posted by
Dave Mayer
Don't add a spare tubular, this is an unfair comparison. If you add sealant to the tubular tires, they are just as puncture resistant as tubeless with sealant. But with tubulars, you do not have to add sealant. With tubeless, you do.
Not sure if I understand your reasoning. Technically, you don't have to add sealant to either kind. Without sealant, tubulars or tubeless will run just fine until you get a puncture, then they go flat. The difference is that you would throw a spare tube in the tubeless tire while you would throw on (and glue) a spare tire for the tubular. If you run sealant in both, they will both likely seal a puncture about the same, and once again the difference is as I stated previously if you get a cut larger than the sealant or plug can fix.