Hi all over the last 4 weeks set up the Dunlap 30'' tunnelhull with the Leopard 4082 1600 KV motor and 6s 5000 mah 40c lipo testing props in the 40-42 mm range . This set-up is a real handfull in windy and choppy conditions with max speeds in the 49-51 mph range tonight the water was perfectly flat with no wind i pinned the throttle the gps read 59.3 mph using a Octura x440 /3 prop. Im considering going back to 4s and try a 3674 motor in the 2000 kv range and once again thanks to Mic and all the others who helped me with my setting this boat up. Regards Andris Golts.