I've made McCall's 3830 before along with half the internet so I won't belabor the construction.
I will say I cut a size 16, took a 3/4" wedge from center front and pegged the hemline just a *little* bit. I didn't want it completely straight.
I used a length somewhere in between two lengths because I am a rebel. :) The fabric is a stretch denim (remnant!) scored at JoAnn. Took less than 1 yard to make which is another reason to LOVE this skirt pattern.
And - my McCall's 5523!!! I love this skirt! It's lined and it's wool and it feels so expensive to wear. Even if I really have no place to wear a wool skirt to right now.
So, I started this in a frenzy because I had a funeral to attend. Long story short I did not attend the funeral for reasons that will be left unsaid. So I made NO adjustments to the pattern at all. Sewed a straight 18. When (not if) I make it again, I will sew a 16 waist as it is a bit too large in the waist.
I love the lining - "drafted" simply by copying the pattern pieces, leaving off the upper flounce. Hemming this was a beast though. Sheesh. But I persevered and did a blind hem and my zipper is so invisible! hahaha!