Just rolled over 650 miles on mine and I am riding it like I am going to ride it! Happy spot is definitely 6-8k RPM. Had the pleasure today to ride some 5-6 miles of trails in Eastern Ks. Nothing super challenging but some dry creek beds with 10-15ft banks, some ovals, jumps and tight woods and the lil buggar will simply do anything I want it to.
I did reset my pre-load. Manual says to set sag 35-50mm (1 1/4"-2") I actually went about 70mm (2 3/4) since that is where my first adjustment got me and I dropped the air in the rear to about 11lbs. For the first time I actually felt the back tire hook up and was caught a bit by surprise as the handle bars nearly left without me
I caught some pretty good air and still never bottomed, doesn't take much coaxing now to get the front up and over any log or lip. @120lbs myself I still can't get the front up on flat but I can sure get it lite.