I bought an Alaskan Series 380A and a new Honda BF20 short shaft this year. It's a sweet little combo and I hope to take it on many adventures. I've only had it out once this year and while the motor ran great I was less than impressed with it's top speed. I was only getting 14-15 mph on the GPS and once I got on step (which was fast and easy) my speed didn't increase any from a little over half throttle to full throttle. My load was only maybe 650 lbs total including 2 men, fuel, motor and gear. Can anybody make some prop recommendations or should I leave it be?