Van,
As for the legality of the added gudgeon I think this paragraph from the rules addresses it:
"ARTICLE OD-V: OPTIONS, ALTERATIONS AND REPLACEMENTS
1. Alterations to the boat and hardware that meet the intent of Article OD-I and do not materially effect sailing performance are allowed. Examples include: retractable rudders (not to be retracted while racing), and vents or alterations in interior outfitting which do not reduce hull weight or alter hull balance."
I added a 4th gudgeon just below the top one, nothing had to be moved and the stock length pin still works fine.
Cliff
Underdog #126