Plaid is a tricky one. Its not the hardest to match off once you decide where the match points should be, but when its off - its really off (the last worst match plaid I saw was 'Wolf of Wall st', Leonardo diCaprio's Prince of Wales suit). When learning factory cutting, we had to do plaids, and cut them in layers of 20 plus careful laying and planning is key and then it should all work out fine. I cut this top on the fold, but I can understand some people prefer to cut plaid on one layer only, the reason I don't is that I am more afraid of cutting 2 left fronts or something by forgetting to turn pattern pieces over.
I decided to put the main dark stripe as centre, as this gave the most fabric and I suppose 'technically correct for plaid' , however the side seams would be three square sides but it looked fine at that so I cut in.
So when I was cutting this, I matched my centre front and centre back lines at the same plaid point for the vertical and then worked up from hem lines, checking then, the underarm match lines and the lines at the shoulder each side of the neck. As this was a simple cut, this was straight forward enough but I had to pin it plenty for sewing to make sure the squares didn't stray.
So after all of this, I must have been a bit slap dash with darts and then one of my darts was slightly off, and fixing a slightly off dart is a lot more difficult than fixing the one that is miles off! (and ironically you could spot the slightly off dart a mile off).
The buttons were from the button tin, originally from black coat .... . I was going to include a collar, but the collar for this was designed to sit flat, and it looked a bit off, if there was sufficient fabric I may have tried one that stood up a bit, in the end, I used the collar as the facing.
I made a long-sleeve-tee to wear underneath - its a funnel neck. I did a basic pattern draft for it, and used a viscose jersey skirt -the weight and drape of this fabric was divine. Its was very quick, draft, sew, wear and I will be making more of these.