First, you're welcome, John, and hats off to you for sharing your find on these parts! after several hard rides i took it of and there was no oil in it..its fairly impossible for it to accumulate because the path is vertical and any oil forced in just drains out! That was the intent of the Too Tech setup, so apparently they succeeded. Anyone see any oil collecting in the tanks on a 2 tank setup like John built? Supposedly, they require an occasional drain. NC, when you checked, were the tank and lines oily at all? What oil height are you using? Something that occurs to me is that if a significant amount of oil were forced up the line, and happened to be traversing the needle valve at the time of a major compression, the rider would get a spike from that side of the fork due to the much higher resistance oil would have to flowing through the metered orfice.