The procedure to align the caliper on the disk is somewhat simplistic, or rather demands some insight on what you are actually doing. I followed the procedure, but couldn't get it right, it kept touching and rubbing. On closer look, I noticed the disk bending when squeezing the brake handle, so no way the caliper could be aligned correctly.
So, in order to get things straight I simply lined the caliper to the disk on eye, looking at the gap between the straight side facing the disk. Now it brakes really good, able to dose the braking very fine and come to a screeching emergency stop.