Sept 14: Gauge came out as 18.5 x 27 so I’ll have to keep an eye on things, but as this isn’t a terribly fitted piece I think it will be fine with some mindful blocking. Carrying on as written. Under Sizing, size 5 is written as 44.75”, but this must be an error. 121 cm converts to 47.63” and the Finished Measurements chart lists it as 47.75”. My bust is 44” so size 5 will give me the recommended ease.