How does the front of your kilt supposed to lay?

[fluter]

I recognize a gig line as a Naval term describing an imaginary line straight down from one's chin. The working uniform belt buckle's side must line up perfectly with it, so I'm a little confused by that term as used with a kilt,

The apron is usually centered on a stripe in the tartan. Lining up that stripe is analogous to the fly of my troosers. Here are two MacGregor setts, one has a narrow apron centered on the broad red stripe, the other centered on the more intuitive white stripe.


MacGtilley by arcturus1997, on Flickr

Festive2a by arcturus1997, on Flickr