These pegs will slide ANYTHING, and i mean it. I slide on aluminum bleachers and crazy concrete ledges and they slide w/o wax, no problem. i dont have the slicker sleeves, but plan on getting them with my next pair of pegs (doubt that will be anytime soon, haha). i love them, might try other pegs, but i dont plan on it. these are amazing, not too long where they get in the way, or add weight or anything, yet long enough to get your feet comfortable for hang 5's and other flatland tricks. they are dope and they look pretty cool w/ all the color options and the slimmer end where the axle goes in.
I would say the only thing that could possibly make me like these more is if they came with a sleeve when you buy them. that would just seal the deal for me. i like these pegs the most any way.