Now you can really have fun...IIRC the Dynohub was 3 or 4 cross on one side and 2 cross on the large flange to keep the spokes the same length...

and I believe that only held true on the 32 spoke hub, and IIRC that is why the rear hub was typically 40 holes...same spoke length.
I will have to check when I get back home.
Aaron