Decided to just change the slider oil and damper leg oil on my 4yr old forks, as they felt a bit sticky. Usually I change it every 6 months or so. I let all the air out positive and negative chambers and strippped the lowers off. Cleaned up and put some new oil in. The damper leg, just unscrewed and drained and replaced. Now I have a clonking noise on rebound and the forks still have a lack of plushness. Any ideas, before I strip them down again? Cheers