Black Argyll Jacket with a plaid?

[Blu (Ontario)]

I say why not. I see no reason that a fly plaid couldn't be worn to dress up an Argylle any less than a Prince Charlie.

I tend to agree... although I think a waistcost (vest) should be worn with the jacket rather than just the shirt and tie.

IMHO, Even though it's not considered "formal" in the strictest sense, the Argylle, like the kilt, can be dressed up or down to suit the occasion. I've worn mine with turtle necks, dress shirt and tie, pleated shirt and bowtie, with and without a waistcoat (vest). Very versatile.
You know, I've found that there aren't very many people out on the street that no the difference between an Argylle and a PC anyway.

You could take a few photos and post 'em for review. You're sure to either "wow 'em", or "bow wow 'em!

.