RE: ***Auto Bailers to use them YES or NO???***
Do you understand HOW they work? When propely maintained, they act as a one way valve. If your boat is just sitting in the water, water tries to push it's way through the bailer. As that happens, a little plastic ball pushes against a block, sealing it shut and preventing water from entering the hull. If water is INSIDE the hull, it will be "bailed" out as the boat is in forward motion. Same way full scale boats rid the water using a drain plug.
These things are "plug-n-play". You do not set them up, just drill your hole, glue it in there and leave it alone....except to clean it.