My mechanic is asking me if I want Globe Run Dry impellers in the water pumps. Has anyone used these and have an opinion? He installed some in a go fast boat three seasons ago and said they were going to change, and the old impellers looked and felt new. I know the owner he is talking about, and that guy is one of those full throttle types. I am thinking I can get multiple seasons if the impellers are what they claim they are. I did see some other users complain about them, but that was from 2011, so maybe that is old info. Thoughts? er