I didn't measure it, it's just that I've made a lot of stretchy shorts so I'm just already aware of what the pattern should look like? there are certain patterns in sewing (back curve, front curve, front arm hole and back arm hole etc) that always look the same and I'm just used to sewing so I know what they look like from working with other patterns.
Holy shit the sparkles XD Looking forward to part two with that waist band...I'm hoping it helps to clear some stuff up with problems I've had with waists on skirts. I swear the pictures never make sense so I stare at them for ages before giving up and just doing some random stitching (which has worked for me with zippers! They never end up like the picture but they end up working for me!) XD