Thats what those pesky FIM enduro tires are for,,,Michelin enduro comp, Pirelli scorps,,,,,,with the balloon 140 rears !! and the low FIM knobs,,,,,at low pressure.
good traction, low impact . Ask any of the WEC guys if those tires slow them down (big Dave,Juha,Merriman,Aubert,Meo,Guillaume,Oblucki, Aro, etc etc )
I just need to keep winding you guys up as the resident offroad tire guy,,,(anti Trials for trail use) more for fun than anything.....because whatever works for you, is your choice.
I really don't think a trials tire would work for my style and location of riding its really not designed for it.