How common is the wear of a Plaid that is a different tartan than the Klt?

[Jock Scot]

Of course you are right Peter, but to be fair though, you are speaking from somewhat of a rarified atmosphere.

For us mere mortals that work from more shallow knowledge probably based on a "tartanarus" style book, or hand-me-down information based on doubtful foundations, then there are quite understandable conclusions made, if sometimes inaccurate ones, that are drawn. Please keep on keeping us out of those quicksands!