I'd recommend the WT147 (Underground Wave Tray 147) for an average-weight rider.
These new generation boards are made in NZ and can be ridden with straps (or wake inserts). They are thin wake/tray-like boards with the tips 'uplifted' which make them more forgiving and excellent performers in waves!! Their scoop allows fast planning and good upwind ability. They have just the right amount of flex with gives them also good pop.
Ever since I got my WT from Adrian (shaper), I became a WT 'enthusiast' and decided to become his dealer in my country as well. If you think that I maybe biased (perhaps I am!) see what other will tell you about the wave trays. The PRO's are definitely liking them these days in Cabarete (special thanks to Dwight for noticing this!) :
Shelden Plentovich (2nd place)
Cindy Mosey (1st place)
Martin Vari (3rd place)
Give me a shout if you have trouble locating one.
Mike (UG dealer in Cyprus).