eBay SE Sport 300 Hydrofoil in action

The best thing since sliced bread. This hydrofoil works great on my 40hp Yamaha. My boat gets on plain fast now!

That's all???? How about a before and after test. Ride height in the water before and lifted height after hydrofoil installed proving that it does provide a degree of lift to the transom. And cruise speed at 5,000rpm before and after. Nobody can determine from this short clip if it works or not.