I had FK send me the sliders, as I didn't want to take them out of my rotation.

They sent the sliders along with instructions on how to fit them. Simple and straight forward, as long as you take your time.

What I have noticed is that the machine's noise is drastically reduced, and feels more "solid" (just an overall feeling on handling).

Worth the upgrade absolutely. I have just kept the other slide as a backup. My second machine I am converting this week (I just haven't gotten to it yet). Maybe if I have some time I can throw together a quick video with the difference in sound between the two.