I've been debating as to whether or not the shocks on my 800 crew are due for replacement. It's not apples to apples but driving my dad's 900 at his place is smooth as can be. Cattle travel up and down the roads here where I am and when you drive over their tracks it beats the machine to hell. However, I don't have a polaris to compare it to here where I am, and I'm not sure how to tell a shock is due for replacement. Machine has 470 hours and roughly 3500 miles. I due notice it bottom out on the shocks at least that's what it feels like fairly often when hitting a bump in the road or I go through a little creek or whatever. I had it pre-loaded all the way and it still felt like it would bottom out. I backed the pre-load all the way off to smooth it up but it still doesn't seem much different. Any tips on how to tell if a shock is wore out?