I'm a little late, I know, but I do see what caused some of your x-axis problems jarekp... If you look at the pics is post #7 and compare them to your pics 1 and 3 in post #8, you'll see that your saddle is almost completely flat through the middle. On most of the G0704 saddles I've seen, there's a .050 or so drop in the middle about an inch from both x-axis ways. Hope this makes sense.