I'm 75 kg and race most weekends. I'm at 28 hours and I really am comfortable on the bike and happy with it.
I kept the fork spring but softened the shock spring and re-valved/shimmed both ends to suit. I made similar suspension mods to my 05 crf250 and 07 crf450, so nothing new.
I am running an "HRC" spec map which improved performance noticeably. No different (really) than the jetting kit I put in my 07.
I turned up the idle and this cured stalling in turns and brings better response off the bottom. My pin didn't break, but I had the free replacement.
I've replaced the clutch springs and metal plates once so far.
Mine starts on the third lazy kick every time. I always use the knob to start cold.
I have one (new) complaint maybe someone can help with. Missed shifts, especially on starts - I can't get from 2nd to 3rd (I start in 2nd). This has happened in my last 3 starts. I've never encountered this problem before. The shift lever is fine, the boots are fine (not new). Yesterday all three of my starts went like this: 2nd 2nd 2nd (!) first turn, but then, everything seems to work fine after that!
If anyone else is having a problem like this please let me know.