Just got a few questions regarding the KYB SSS forks on the FX. I'm finding the forks to be way to stiff for my weight 75kg/165lbs. The initial part of the travel is fine then they seem to go rock solid. This is with 2 clicks off fully soft. I believe the FX comes out with 4.4N/mm spring rate and using the race tech guide its telling me I should be at 4.2N/mm. Here is where it gets confusing. Whilst I was dialing my suspension in I had a ride of a 2014 yz250f with stock suspension but it felt alot more plush/smooth and I could feel the forks using heaps more travel of the fork and it felt fantastic but from what I can find is that the 2014 came out with a 4.7N/mm spring rate. So the question I wanted to ask was how much of a difference will fork oil level/quantity make to the harshness/stiffness of the forks? I have read that the FX has an extra 5ml than the new WR which puts it in at 335ml with a working range of 300ml-350ml. Is it possible to just syringe out some fork oil to play with levels in these KYB SSS or do they require to be disassembled ? Also for when I do get some new springs are these forks tricky/hard to change your self or fairly straight forward?