I have a SlikStik skirted knob on my Oscar V2 and I like it a lot. At first I wanted the Tempest Knob from Oscar but since Kelsey decided to go Bye-Bye, I got myself the SlikStik and in the end I think this is a better all-around knob.
It's skirted for the place to "rest" your fingers, and the knurling is super-grippy so you can whip the thing around and stop it in an instant (excellent for Tempest), or you can turn it precisely with the tip of your finger around the edge of it, etc. Overall I've been happy with the SlikStik skirted. Good luck,
Eric.