And Another Thing to Overcome Common Logic:
Whilst the spin boats are flying giant spinnakers while the A-cats are still using their tiny little mains only, the lets say "Alter Cup Area D" course can (randomly) be an even number of legs or odd. Usually, spin boats catch the A cats near the finish line because of EVEN-numbered legs. NOW- Guess what happens if there are an ODD number of legs: A-cats smoke 'em, and the F18 guys cry, moan and complain.

Dacarls:
A-class USA 196, USA 21, H18, H16
"Nothing that's any good works by itself. You got to make the damn thing work"- Thomas Edison