I use Renegades without the traction studs.....I can't say that I've needed them.
Also, I think the boots are not nearly as slippery on rocks as shoes.
I also don't think the studs would damage the trail any more than shoes.
By the way, a ranger in the Smoky's commented on how much easier the boots are on trails than shoes.....
For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.