I think he's referring to why two early 80s monohulls are not being run down by much sportier trimarans since leaving bella bella. not having the polars on hand, but it seems like a 27ft tri should easily be going faster than a 33ft mono once the difficult narrow passage crap is gone and you're into open waterOn why "big" monos beat the trimarans...its the conditions; if its light the trimarans (and M32 and G32) will go like hell... but in the heavy conditions the forces on the boats and people are much bigger on the multis- and breaks them down when its a long race like this. Also few people vs a good crew usually on the monos. And also the trimarans are loaded up too much in many cases. I also think the outside route will win most of the years...a capable boat will di that rather easy - and you need luck to be faster on the inland route.
I reckon it's more to do with windangle, if it stays on the beam like this then you might find that lead getting eroded but the multis will run out of racetrack.