I think that was me that told you that. I wish I could copy a picture out of my 2nd edition service manual. It clearly shows the line even with the top clamp and a box with pictures and measurements from the top of the cap at the edge and the top of the clamp and gives that measurement as 7.8 mm. My bike also came from the dealer with the top cap flush with the top clamp. My bike does turn in better and handles loose surfaces when set even lower. Your results may differ. Did BMW do some thing to the forks? Would not surprise me.