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Message: [QUOTE="Yoken, post: 568969, member: 25312"] For the base valve, the idea of using the 0.2mm cross-over came from earlier posts . In 2000, an Austrian rider (Drehwurm) was trying different BV settings for his EXC... James Dean gave the idea but with (2x)24.1 15.1 12.1 For the mid-valve, it is just pure imagination (except for the 0.5mm lift, which comes from you Marcus in previous posts). I spent several hours assembling different stacks and comparing them to the original one...hum... by pushing on the shims through the piston ports ...hum... with a toothpick! Now you are all laughing at me here, I am sure, but that is what I used to "feel" the different shim stacks. Like you, I expected this kind of setting to be too soft and "divey" for my SX. But I decided to try it and work my way up from there. It is just a surprise that it works well for me... on that particular track (medium speed, tight turns, hardpack, rocky. slippery, choppy, dried ruts...). I must try the bike on faster tracks now to have a better judgement. Questions: With 0.5mm lift and the 0.2mm cross-over in the MV setting, does the high speed stack have a chance to be solicitated? In other words, can the LSC stack have enough deflection to even reach the HSC shims? Is a 2-stage stack a bad idea on MVs? I don't remember reading any posts on that subject. The original seating area of the MV shims is 14mm diameter (please correct me if I'm wrong). This is where the shims get in contact with the rod base when fully deflected. That 14mm diameter seat is a pretty large area for the 24.1 shims. There is not much room to flex. In order to reduce the lift, I have used a 10x8x0.5mm shim at the base of the stack and I assumed that the smaller seating area (now 10mm) would allow the stack to flex more and therefore offer more control. Does that make sense? Why did WP use a 2-stage stack for the rebound? In my opinion, the rebound stack is mainly related to the spring. The more energy stored (and consequently released) by the spring, the higher the damping. It looks like a linear relation and it sounds more like the job of a single-stage stack. What is your opinion? Yoken [/QUOTE]

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