Hello Jon,

I had my mastfoot also broken at Texel this year, and got it repaired. Btw, didn't do it myself. It was not too hard to do it, took a couple of hours. It was made out of a bare aluminium plate of the same thickness. First the original plate was removed from the mast in the way you decribe it, no really special things as I can recall. The same shape was given to the new plate. Drilling the holes and it did fit right away. I don't have the tang connected anymore.
This way the mast foot won't break anymore when the mast comes down when it shouldn't but the disadvantage is that stepping the mast is not that easy anymore, don't think you can do it anymore with just one person.

Maybe one day I'll put on the tang again, and just remove the pin after stepping the mast.

Geert

Taipan #186