Ordered YN460 II's and received YN462's

I ordered (2) YN460 II's and received (2) YN462's. It will be waaay too much trouble to return them especially for the low cost I got them, but I'd like some help.

I need a clever idea on how to very roughly guesstimate power output on the wheel of the YN462 to make hashmarks with whiteout or a silver paint marker or something.

By just taking some test shots and loading them in appropriate software, does anyone know how I can guesstimate the power output?

Or am I just as well off marking 1/1 and whatever the minimum is and putting proportional marks everywhere in between.

hope that made sense . . .

You could always sell them and try your luck again

meh . . . when I have more time I'm sure I will, have too many upcoming jobs though. It takes sooo long to receive them from the ebay sellers.