Suspension issues KTM 350 SXF

Hi all,

I’m having a hell of a time with shock springs on my 350. I’m about 5’8 and 132 pounds (yes I’m a rail), when I first bought this bike I was closer to 140 so at that time it was recommended I get a 4.0kg spring. I don’t think I ever actually had the sag right on that and after losing weight this year I got a revalve and switched to a 3.7kg. on the 4.0kg, the best I could get was about 97 mm race sag and 48 mm static. On this spring I can get almost 105 mm race, but still at 50 mm static. Needless to say, bike rides like s**t. I’m running 118psi in the fork.

Questions:
1. Could the spring that I was sent just be one from a bad batch that were manufactured? It says 16x265x36, but this spring really should be perfect for my weight if it really were. I should have decent preload on it while hitting the sag numbers, but I didn’t get much more sag out of it than the 4.0kg. That’s also the lightest spring you can get, no other options!!
2. I measure the sag standing straight up and down on the bike. Also checked sitting directly above the pegs, with minimal to no change. Any objections to this method?
3. Any other factors that could be impeding the spring from compressing properly, keeping me from being in the proper 30-40 mm static range and 105-110 race sag range?

Thanks in advance for any insights you can provide!

-Wayne