A while back I bought a kilt for cheap on eBay, wondering at the time what might be wrong with it. When it arrived, I discovered that the underapron strap had been pulled so hard that it had ripped out of the buckle. (Musta been one big dude!) No problem to fix that. Other than that, it was a well-made kilt from a commercial clothing house, using a very fine worsted wool tartan. I've had lots of compliments on the kilt - and not a single comment about the twill direction!

It took another month or so for me to check the twill direction. Sure enough, from the selvedge, the diagonals ran from lower left to upper right - backwards. The commercial enterprise had made it inside out. Nonetheless, I wear it as an everyday kilt, and do not hesitate to dress it up, either.

Last Thankgiving I visited the "______ Scottish Imports Shop" in "_(city)_." I happened to scan their racks of kilts for hire, and suddenly became aware that approximately 50% of their stock (Stewarts, Gunn, Gordon, etc.) was made up using the "wrong" side of the fabric. Not wishing to make a pest of myself, I did NOT mention it to the proprietor.

Modern tartans are usually so well-made that the two side are almost indistinguishable but for the twill direction. My bet is that very few people, except those on this board, would notice or care that the "wrong" side of the fabric was used.

Whatever you make and however you make it, wear it with pride, having the satisfaction that you did it yourself. Each trial produces fewer errors. Sew on!