[FoosShark]

Well I used the 2 hole saw method this morning and it took maybe a minute and a half.
It might take me awhile to separate the two hole saws though (I used another mandrel and the 2 hole saws were separated easily)
This was a swing tongue, so I took it completely off and laid it upside down on the lawn.
It would work just as well on a regular tongue except you would be on the ground drilling up.