My wife and I launch our 21 using the back and tap method. I undo the rear straps in the staging area and get the boat loaded. Then I back the boat into the water. When my back tires are about a foot or two from the water, I put it in park, triple check that it’s in park and hop out. I then undo the winch and safety strap while my wife grabs the lines. Then I hop in, back up until my tire are just in the water then tap the brakes and the boat slides off and my wife ties it up while I park.
I usually don’t motor onto the trailer unless the tide is super low. Usually the winch pulls it up since my boat is so light.
I made a checklist of all of the steps in the launch procedure.
Mostly so I don’t forget the plug.