Ec300 clutch assembly position

[jprizz]

I needed to replace my kick start shaft so I disassembled my clutch to do so. Then I read this in the shop manual:
Note:
The clutch hub has an assembly position with respect to the primary shaft. Mark the position using a permanent marker on the grease ring.

So how important is this? Since I didn't mark it is there any way to determine the assembly position? Is it because its balanced or something?

Thanks,
-Josh