Shawn,
Welcome to the board!
It's the "fairly" i am worried about. Running these in boats, they are assured to get dunked. Smoking a $175 contoller isn't the best of thoughts.
I am comfortable with Andy Kunz's (RC-Hydros) "bulletproof" brushed controllers, but I want the speed and lack of maintance that comes from the brushless motors. Therefore the need for a "waterproof" brushless controller. Andy's brushed controllers can run all day (or at least until the batteries dump) submerged, so that is the benchmark.
Not a bash, just some info.
All the best.
Ray