Thanks for all the information on your race. I'm kind of in training for a 262 mile water safari. It's a downriver marathon. In designing my boat I tried to go for comfort, stability, and a 4 mph cruising speed on flat water. I believe I got that except that I also need to do more work on the seats, seating position and height. I did a 4 hour 16 mile run yesterday and also found my current seating system leaves a LOT to be desired. In sept I'll do a little 16.5 mile teaser. Then I'll know whether to build another boat or go with the one I have now. Anyway...I'm quite interested in the performance of your RB Auk.