I wasn't trying to make you feel dumb, sorry If I did!!
As far as your Jib, Several Division 9 H17 sailors usually come to the race with NON sport H17's if you take the Jib off I am sure they will be glad to have you Join thier Class for the Race, otherwise you may be placed in the Open class. The H17 racers from Div9 are a great group and I am sure will be glad to offer rigging tips and advice if you ask.
Good Luck,
Doug W