Hey Darkplague,
I was looking around for a similar sort of thing a couple of years ago. I had my Fanatic FSW 95 litre but was looking for something a bit smaller for the really windy days.
After consulting with those who know what they are talking about I finished up getting a 79 litre JP Pro 2009, single fin. Avoided just getting a smaller FSW because it would be too much like what I already had.
Found that it works for me so I recommend going for a wave board. I reckon 77 litres would be pretty small for you though, poss go 80 to 85.
