Here’s a scaffold (or industrial) piercing. These are always pierced with extra length to consider the swelling/healing (it’s technically two piercings at once.) I pierce with one needle and follow alongside a blue line, which I mark up before hand. If it was pierced with two needles, that would obviously be crooked, thus stressing the ear. Marking it up, also allows you to consider moving it for placement, although most of the time your ear dictates (by it’s shape) where it will sit most comfortably and best aesthetically. I pierce with 1.6mm x 30-40+mm.