Gauge on 5s is 19 st and 28 rows/4” flat (6s 18-19st and 26 rows)! Pattern goal says 20/24. I know row gauge will be even further off on 4s even though stitch gauge might be closer. This gives me another almost 2” ease for the 43 which is still in the upper end of recommended (at least based on full bust.) So am just going to watch length/ row gauge closely and will definitely adjust frequency of neckline decs-- and add short rows on the collar if nothing else.