Hi Flummoxed,
The 91 liter Flare will be 100% your choice without any doubt.
It's the perfect for you weight in any condition from 5.4-3.7 sails you will enjoy this board even in choppy to light wind wave.
the 91 I made it to be a perfect board for any conditions that was my plan while building the 91.
91 go for it,
Taty