O'Callaghan, thanks for the history lesson! And that is indeed what I intend on wearing, either a Heritage of Ireland or saffron colored (as my uniform kilt is). I do own a non-clan tartan phillabeg, but that was because it was purchased for a Kilted Christmas Eve and incorporated the representative colors of the holiday.

If I was to entertain the thought of wearing a tartan that was other than non-clan, I would indeed learn the background of it so that I could pay the proper respect to the clan.