I haven’t used the Continental … but I did run the TB’s tubeless front and rear on an xc bike that i used to do a 30km commute on (30% road, 50% gravel, 20% singletrack).
Rolling resistance – check! Super fast bastards when you’re on the dry stuff. Best mtb tyre i’ve used on the tar.
However on basically every other aspect they were ‘orrid.
– bugger to fit
– virtually no puncture protection. I once got self and bike covered in sealant on the way to work as it just didn’t stop (maybe the sealant’s fault).
– not much fun on singletrack at all if you’re going down any kind of steepness.
To be fair they climbed ok with the pressure dropped on dusty, dry surfaces.
For me the rolling resistance didn’t outweigh a well-inflated Ardent, which is what i’ve gone back to.