Hi Andrew
Skatie as mentioned by Krist is a good description of these boards.
Skatie is not a good match for your description of 'bigger surf' I believe.
The Waves at my home breaks are most of the time the in the 4-5'+ size, on occasion they are in the 2-3' range.
Fortunately I have a 7'2" Hypernut in my quiver and I really enjoy the skatie and acceleration of this board only on the smaller rare days.
Most the time I am riding an 8'5 and above with narrower tails that suits bigger waves better.
Regards
Jack
First day on the Hypernut when Starboard came down for a brief visit, riding the 7'4 at my home beach back in 2015.