Almost $40 for a Bridgestone UHD. They last a long time, nevermind the rubber dust, but you do have to replace them. $100 initial cost for Tubliss, never replace unless damaged. Tubliss gives you:
- fast and easy puncture repair
- ability to air down for traction
- no risk of pinch flats when aired down
- opens up more tire possibilities (makes bad tires good)
I can say at Moab, you changed front tubes twice on Slickrock, which is only an hour-long trail.
And Fred changed a front tube that went flat on Sovereign.
I never had flat problems with UHD tubes but I went to Tubliss for easier puncture repair and more traction in the rear. I wouldn't use it in Baja, except maybe with tube backup.
There's no reason to run a trials tire now that there is Tubliss and hybrid tires (Cheater, Ibex, etc.). I ran the Michelin X-11 and Shinko 255 Trail Pro trials rears with UHD tubes before I got Tubliss with the Shinko R505. It gives 80-90% of the trials tire's technical ability, with more ability in loose soil hillclimbing.
Pirelli MT-43 isn't a trials tire. Close but no cigar. Think of it as a hard terrain hybrid. It's good and I'll keep using one on my 450.