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Yup, tried that right after I last posted. (and then fell asleep :zzzzzzzz:) All the fans do light up. Here's what I've found out.
LL120 info
The center leds are 1-4 and outer are 5-16.
The leds on the outer loop are sequenced differently, from the front the 1st
led is at 10 o'clock, on the HD120's the 1st led is at 2 o'clock. The first
attachment shows the difference, red is the 1st led, green 2nd, blue 3rd
and yellow 4th. Yeah the pic's bad. (unfortunately the transition from red
to green is more yellow than the yellow color) Both fans increment
counter clockwise.
So short of dealing with the center loop and sides/quarters it's not too bad of a change. 'course the devil's in the details.
I've played with some code to implement fan types to allow for number of led's per fan, offset of outer ring and identifying the type at run time. Hope you don't mind Charixfox. It's really prototype as a proof of concept but the second pic shows it's sort of working. I'll keep going as long as it's ok, I don't want to step on any toes. A very nice code base to work with, good job Charixfox.
Lemme know if I should keep going..