Mahogany splice in spruce mast

[SchoonerScotty]

Hi Sailing and Rigging Whizards,


My boatwright said he can use mahogany to slice a foot to two foot section, using epoxy and a thickener, to replace rotted spruce at the top of my 28' box sectioned Sitka Spruce mast. Will this work OK structurally?

Just want to be sure... he then will put on nine coats of varnish, sanded between coats and said the wood should be protected. Also, at the mast head, there is a sheeve box inside so the wood is not thicker on the port and starboard side more than about a half to 3/4 of an inch on each side....

Thanks,

SchoonerScotty