mountianrider is "135ish" also and on a 2001 200EXC. 4 him the rear sag indicated the the rear spring was slightly heavy, but he's an aggressive rider, so he's ok with that.It did seem out of balance though when he first got it.He seems to be getting it in the ballpark now.What worked for him was heavier fork springs (42's,I think,) with,I think,alot less fork compression and a little less fork fork rebound,a little less compression damping on the rear and alot less rebound.He dropped the front slightly by raising the forks in the clamps just a bit to gain his turning back.What I'm getting at is,dropping U're rear spring rate might actually balance the bike out and make it easier to ride.Yeah,I think that 4 U're weight,dropping the rear rate will make the bike easier to ride 4 a newer/less aggressive rider,but I don't think U'll need to change ft springs.
Sorry to be so long winded and general.If U want/need his sag figures or clicker positions,he or I will supply,just ask.As I said,his is working pretty good now.