I got this yesterday from the Canadian boat racing champion and friend Mark Rotharmel. Mark raced the F1-V8 series also.
Thanks Mark very interesting reading from Montreal Gazette early 1985.
I like to add..Mercury did nothing at this time to improve tunnel boat safety. Only OMC, Chris Hodges and Cees Van Der Velden.

“Swim and win” in Nottingham 1981..
Was fighting with John Hill and was trying to pass John on the inside..
My Burgess/AKAI boat hooked..rolled and I had to swim back to the boat. Started up the engine and finished that heat.
Click the link for the rest of the story..

The Winners are..Molinari OZ – Seebold ON – Strom OE..Nottingham 1981

Cees Van Der Velden winning and swapping power heads with the fourth place driver Tom Percival and winning again to prove a point..

Full Powerboat & Waterskiing Magazine story.

Yes, I was there racing F3.