Hi, how are you? I’m doing my first sweater with a Rowan’s pattern. I am close to start the armholes, and the pattern says this “Back should meas approx. 50.5 [51.5; 52,5; 53,5; 54,5] cm, allowing first few rows to roll to RS”.
I have some questions: should I mesure from the bottom of the knitting to the needle to check if it measure 50.5? What happens if it measure more or less that what it should? what it means “allowing firs few rows to roll to RS”?