I think you have you sizing information incorrect...
http://www.mrrabbit.net/wheelsbyflemingapplications.php
Grab the spreadsheet...
For the spokechart tab, input hole per side, crossings at the top, and rim diameter just below...play around with crossings see what you get for typical front flange hubs throughout the chart below - hubs with diameters of 36-40mm.
=8-)
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5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life