Long story short, I don't like the idea of having water sit at the back of my boat while it's on the lift but I don't like jumping in the water before and after I use the boat to install/remove the plug either. I started looking for a one way valve that didn't suck or even a remote drain plug that I could open and close from inside the boat. Well the remote drain plugs look good but are almost $100 so I went back to my standup jetskiing roots and contacted the owner of a product called the Versiplug which is basically a nice ball valve. I asked the guy if he made anything for a standard boat plug and he said he didn't make anything for boats at the time but was working on a prototype that would just screw into the standard 1/2"-14 NPT plug.
I'm not trying to sell these. In fact, they aren't even for sale yet to my knowledge nor do I know the price of one but the guy was super cool to deal with and I wanted to see if others were interested in this. These are the pics of it installed on my 2000 Malibu Response LX. This one is made of stainless. I've been on the boat for 5 hours in the last 2 days and haven't gotten even a dribble out of my bilge pump since installing it. Today, after 1.5 hours and 5 skiers/boarders, I didn't even have a wet spot under the engine.