These two stones are so similar it's insane. One slate, one novaculite both pretty similar traits but with the traditional processes for each. I'm me to the Vermont and I've had the llyn idwal for a while but I think the LI still has a lot of secrets to offer up. I've not resurfaced(minor buffing with a worn 1k plate) the stone, ever, just degreased it.. these stones seem pretty interchangeable. I've never really used any type of slurry on the LI(or any novaculites aside from normal washita shedding) but grain and feedback are insanely similar.