I am not sure where I read this, maybe in Sobon's yellow book, there was an issue with shrinkage with the lapped dove tail on the bottom of the tie on english tying joints. For some reason here in America there was more shrinkage than in England, therefor the cog was use more frequently, shrinkage not being as much of an issue. Is this true, has anyone read this before?

So, daub is the preferred infill? Have you heard of "stud and mud"?

Tim