Its a little narrower than the starboard. I think they come in 27 or 28 inches wide, mine is 28 but the flat board on the water is 22. Jamie's is 27 and same on the water
They have a deep fin so there is no compromise in stability
It also keeps the thickness through out the board so it sits a bit more out of the water so it gets up and planing
here is some footage of Jamie Mitchell paddling it