This is from the MacMillan Clan Chief.

"Have you any knowledge of a Branch member who likes to wear the MacMillan 'black' tartan?<snip>
So far as I'm concerned, he can wear whatever he likes. But, if he tries to persuade others that it's an authentic MacMillan tartan, I suppose I'll have to disabuse him. "

I'm afraid this would be me.

The above is a direct quote from our Clan Chief.

You MacMillans now are brought up to speed. The modern black is not recognized as official.
I will continue to wear mine. I will let others know of the Clan Chief's descision.

Jack/Fedgunner