A 'dress blue' Scott?!? Didn't know there was such a creature!
The 'Dress' tartans (with a mainly white background instead of red, green, or brown) listed on the tartan finder websites are generally ladies' tartans, intended for arisaids
You should see the colours that the Scott tartan can be found in now. The Scott tartan is very sharp looking and looks fantastic when made into a dancers kilt.

Dress tartans are not just for women either. While the male dancers don't usually go for the new turquoise, raspberry, lavender or cerise colours, you'll find practically every male dancer in a dress tartan. Why? Because they show up better on stage.

While I am not impressed with the wild colours tartans can be found in now, I applaud the efforts that weavers are going to, to keep the interest in Highland dancing.

kiltmaker: The only thing that I can suggest is to take a look at the section of the book 'The Art of Kiltmaking' that addresses identifying elements within the sett and then how to pleat using the elements. My experience to kiltmaking has been with setts that are less complicated that the Scott.