Good: No 14 year old experts have replied. You are on the right track, follow the factory instructions they are dead on.
I set the linkage as the factory directs first. Then I screw every mixture needle into bottom (gently) and then screw it out 1.75 turns for a start. In the old days I then started it and tweaked each mixture screw to the smoothest warm idle by ear. Generally they would all end up at the same amount of turns out but unless there was more than 1/2 turn between them all I wouldn't worry about it. A wideband can speed things up these days.