The shock preforms pretty good, I recently re did the suspension on my High miles Exciter.
I would still replace them if they feel at all rough. The new bearings, you can't tell they're moving they're so smooth...
Br wary of those sliders, I bought the garlands, (same as they use at the dealer), and they sold me sno-stuff. I have one on my Excel, (has the same slide but different length), that is frozen on. I have to replace after 200Mi, because the clips were bad and wore right through them. It is hard to keep wear down when your clips are like razor blades. It was a pain to pound on. The garlands slide on without pounding until you get to the curve, then light tapping, no hitting them as hard as you can, as with the sno-stuff.
I still have to put on a track on my Excel, I got one from Indyrydr500, for $64 shipped, about brand new. The track was bad, missing lugs, and not a clip left. I came down to where it was slipping off the bottom of the suspension...