I run the burly kit with heavy fork oil

 

I just installed the progressive 2 inch in my front. Heavy SE fork oil, I like the set up.

 

Progressive Original Kit. 2" drop..

I had the drop in kit but did not like the way that you could not adjust the preload, the forks felt spongy to me so I replaced with the original that limits the dampers and allws for as much or as little pre load as you like and SE Heavy Fork oil.