Hi Garf, I've had some of the barre ll hinges break off which is a bummer! I carved the stumps even with the adjacent surfaces and made up MonoCoat hinges out of Saphire Blue MonoCoat! This will work just fine IF You clean all surfaces very carefully with alcohol or some other more powerful cleaner or thinner. You must iron two lengths of MonoCoat together,sticky side to sticky side. I use scrap pieces of their backing material to protect the work with paper towells top and bottom. You then cut off 1" sized slices and apply as in old time over and under cloth hinges! One added caution is to recover you new hinges with over sized strips of similar blue covering to seal out oil and slop seepage! On new planes covered with iron on coverings, I've used this method to apply hinges from the git go with the only exception being to cover the adjoining bare wood surfaces with one inch top and bottom, that would be tow inch total strips wrapped around the surfaces. Make enough hinges to go from root to tip thus "sealing" the the entire length of the moving surfaces.
This method has been on a plane originall built in 1997 which is still flying with many of the original hinges still working! Naturally I have had several dings with this unit and those places have been re-hinged and recovered! Still flies quite well with about 1,000 total documented flights on it!
Phil Spillman