DSC00450 As I had mentioned previously, you need some sort of a mast crutch to hold the mast up off the cabin while you pin the tabernacle. A small roller in the mast crutch will allow you to roll the mast forward or aft. I was fortunate to get a full stern rail on my new O'Day 222 only because I requested it. They only install about 20 of these on these boats that year so I'm told. I had a welder make me up that mast crutch to my existing rail. He only charged me about $230 back then I think. I built that wooden crutch and later added the roller. My friend Wayne Barlow gave me the idea of having a roller in the crutch. I had been lifting my mast and walking it back to the crutch and putting it in place-- like a dumbbell. Heck it's easier to roll it back and forth.