I think the bumhole is a good idea. If the birdbath area gets filled in rough water on a dugout it can take a ludicrous amount of time to empty otherwise. With the bumhole, as soon as you take a stroke most of the water should sloosh to the back and reduce emptying time considerably.
It's also a bonus not having a rudder as far as I'm concerned. Keep it simple and reliable, and allow different fin choices.
I've not got a lot of rudder experience but I was kinda hoping for a standard fin box with the option of rudder spindle through it - that way you could run either option as you wished... let's see what the price is as well...
I thought it was proto'd with a rudder system. The one I saw was certainly set up that way. It's a big board to DW in our conditions without a rudder. The last one was hard work.
