Some things I might get around to doing sometime:
Measure Accelerations in my boat
Measure Gs of acceleration in my boat during different wave conditions to get an idea of how many Gs is OK and how much starts to bother people. Might just read some studies but since I will soon have a "G Data Logger" this should be easy enough.
Measure force to move models
Measure force needed to move models at 1/5 MPH and 2/5 MPH to simulate 1 and 2 MPH.
Nice video when new camera comes
When new camera comes get some nice video of models in the sea. Probably try replacing the balls on the WaterWalker with something else too.