Some clarification: The Rave weighs 400 lbs. The weight of the pilot in a race is a required 165 lbs. Any lighter skipper is obligated to carry weight near the pilot's seat to make up the difference.
There is no experience on the water like foiling but the weight of the foils will slow you down while hullborne.
Regarding Hollis, he bought his Taipan so that he could race more often. The Rave crowd doesn't particularly like being restricted to a windward-leeward course so it was very difficult to have a good turnout for racing. When you have a boat that foils, who cares whose the fastest beating or running?