I think he's right on that one. It would make an interesting design challenge that's probably best avoided.

Todd: Thanks so much for that preview, mighty great stuff! Is there a tool online for that?
As expensive as custom tartans are, I like to arm myself with as much info as possible before opening my wallet. First I open the tartan designer's preview in Photoshop and splice a whole bunch of them together to get a good idea of what a hunk maybe 24" square or so would look like. It's often a very different look from what the small preview showed - sometimes good, sometimes not so good. Then I have a Photoshop file I made that has everything in different layers to make the kilt cartoons. I can take the extended tartan preview that I made and plug it in as the new tartan layer. It's a concept cartoon, not a rendering - but it's certainly a lot better than just trying to picture the final product in my mind and hope for the best.