My mast was cut just a few inches above the deck and a tabernacle installed.
This was too low. You cant lay the mast down and let it rest on the transom to connect the tabernacle pins.
The mast hits the roof and sticks out into the air. You have to have someone hold the end of the mast or have some wood or metal arrangement to hold it in the air while you make the connections.
So if anyone is ever thinking about cutting a mast, check here on the site and get input before taking that big step.