I wish I was nearby, I would be out tomorrow to help! I just raced in an informal thing on Lake Thunderbird today on my 5.2 and did well. They are a blast solo! and almost as good with a friend. Enough power so that I was really enjoying my time alone on the boat today. But also subdued enough that when my friend who had never sailed before came over she wasn't scared.
Good luck getting it together, you will have a blast!