That is a fantastic waistcoat.
I'm thinking of making me a tartan waitcoat too and I have a question maybe you can help me with. What is the purpose of making the vertical seams on the front of the waistcoat? I see that most waistcoats have them, but I can't understand why they are there. I see that your waistcoat also have these seams in the back.
Does it have anything to do with shaping the waistcoat to the body shape? couldn't that been done with the seams in the side of the waistcoat?
Skål!