We ordered a replacement propeller from iboats for our outboard ski boat. The propeller we received did not work with our engine. The boat shivered and shimmied as soon as we started the motor. We realized right away that the propeller was wrong for the engine. So we removed the prop, while the boat was still in the water. We put on an old prop instead, and the next day we returned the iboats prop. Iboats refused the return. They sent the propeller back to us, claiming that since the prop had been in the water, it was "used" and... read full review »