Adding oil is the key for the standard forks.. I originally raised the oil height by 10mm, as the fork would blow through on any decent hit. The fork has 10% more low speed than the 09 450, but still lacks substance towards the end of the stroke which can be band aided with more oil, but the more oil you put int the less plush it becomes in the mid stroke. I have had the mid valve modified to stop the fork blowing through, which gives the fork a more progressive feel with 350 cm3 of oil.The spring rate is spot oin for 190lb weight.
As for the shock the stock valving is good. It is very plush and maybe a just tad soft.
The std 5.7 spring is boarderline for my weight. 85kg without gear 91kg with gear
I run 102mm race sag with 25mm static sag, i may have to go one rate stiffer according to my tuner as he would like to see a little more static(around 30-35mm)
comp LS 5
Hs 1 turn
I measured my race sag just awhile ago and with the bike just as it is (stock) like it came off the show room floor no adjustments to the spring, my race sag was 102mm (me in a sitting position).
The static sag was 38mm.........so I guess this would be the set up for my weight (which is 174lbs in just underwear) and 197lbs in gear.
Although the bike has not been ridden yet and I guess it needs some stress put on the springs first and then set sag. Hope to ride it soon (awfull cold and windy now) expecting snow for tonight