Artificer, from what you said in your last post, I would suggest you invest in a new set of brogues (wingtips) that you are comfortable in. and give them one of your blinding spit shines.

If you are going to a formal dinner where there are going to be other kilties, you will probably find many ghillie brogues with thick soles there anyhow.

You obviously wear regular brogues a lot and as you need a new pair anyway, I think it would be false econmy to buy a pair of Glenfinnan that is a once a year wear, and then buy a pair of brogues for everday wear.

I think your use of the Argyll with a 3 button waistcoat would be most acceptable and a sporran based on your No 11 would set off the outfit a treat (no one would look at your shoes anyhow after seeing the sporran)