it's all in the compressin damping, I'm 17stone and I find for my S that the front needs +1 ie 1 harder than it says in the book and the rear is +2 harder,
The springs, the forks are round right up, the sag is out the window but it works for me if you want I could look for you,
The rear is a compromise for me, I go two up and dont want to take the rear shock off each time I ride it, so I have the spring wound up a bit to much for one up, theres no sag at all, it goes down about 5mm when I seat on it,
dont over do the rebound,
I hope this helps,
