I dont trials anymore, im a road bike nerd with a bit of mtbing, but ive been playing with waxed chains.
I know trials chains get replaced often, but you could do several chains in a batch if you wax melted, or drip feed them.
Theres just the benefit of no oil landing on your rim or disc rotor, and your drivetrain can stay clean and reduce the wear on chainrings.
Is anyone trying this currently? I appreciate its probably an unnecessary extra step but now I've played with it, if i still rode trials I'd probably apply it.