Personal preference for jacket parallels XMTS founder Steve Ashton's; a Saxon blazer (not cut down) in wool or tweed, rather than Argyll, for daily wear (with day sporran).

In other words, treat the wool tartan kilt as a pair of wool trousers.

In this experience, an Argyll at non-Highland affairs is a bit much. Am strongly considering toning down (only) Argyll with horn or bone buttons; the (as jacket made) square silver-metal ones are too garish for this writer's preference.