This top took a long time to complete, mostly because it was interrupted by a pregnancy, and I finally wore it for the first time sometime after baby’s first birthday. I’m picky about clothes in general, so when I make something for myself, I am paranoid about the fit. My tip for a snug tank - the finished measurement should be smaller than bust size.
To get a good fit, aside from bust size, there are regular, petite, and tall lengths. These numbers will be written in Blue. If you’re a size small bust, but you’re 5’9”, you will be following the smallest black numbers, but the largest Blue numbers.

To fit Bust Sizes: 32, (34, 36, 38)“, Heights: 4’11-5’1”, (5’2”-5’6”, 5’7”-5’11”)
K1C2 Babyboo Black (MC) - 5, (6, 7, 8) Balls, 50 Grams/115 Yards
Mondial Cotton Soft or any fingering white cotton (CC) -1 Ball, 50 Grams/ 197 Yards