I have a Kazuma Lacoste 110 with a rear shock that is needing replaced (it's very stiff and doesn't respond well). I thought about replacing it with a used OEM Polaris Scrambler 50 rear shock as it seems like it might fit.

I'm looking for opinions on the Scrambler rear shock. Are they any better than the Chinese shocks? I'm also interested in any suggestions other than the Scrambler idea if someone knows of a better replacement. My Kazuma shock is 9-1/2" long from eye center to eye center in it's mounted position.