Hi guys,
I have made a promise to bring BOP style racing and training to Perth (at least in the North). This will begin in a few weeks, please have faith and be patient, I have much to do and am working flat out to make it all it can be. Our new website goes online in a few days as we start to get geared up for the season and put up dates etc.
BOP racing seems to give preference to 12'6" class, so I'm guessing if you want to start competing in the future, that is the class to go for. For sure, 14' boards will be better for DW. I used the Fanatic 12'6" x 30.5 in the Goldie races and found it was fast enough if only the engine driving had a bit more poke

One of the things I learned from BOP racing is that the ability to stay on the board and complete a race without falling, far outweighs any gains you may get from additional speed by paddling a 12'6" x 27.75". The BOP style racing will not necessarily be won by the fastest board.
BOP racing requires lots of other skills as well as straight line speed. Fast, clean starts, efficient kick turning around markers whilst under pressure from close quartered competitors, making turns on the inside whilst riding a wave with several others, handling your board in and out of the water, good fitness etc makes the racing fair, challenging and exciting.
I reckon at 85kg, you may find the more narrow boards a tad tippy, I know at 90 kg I found them hard to stay on which is why I have chosen a 12'6" x 30.5 carbon race. I weigh 90kg and am 6'3".
From next weekend you'll have a bit more of a choice in brands and models to choose from in Perth so no need to jump in and make a rash decision.
Just because things haven't happened in Perth up until now, doesn't mean it's going to be like that into the future

DM