romper pattern altered for heavier babies

hi, just remembered that amy is smaller than most babies of the same age:) she is 16.5lb at 9months, so if your babies are chubbier, they need more ease at the underarms. so you have to add one more inch in all the pattern pieces, like this:

this is just the rough sketch, but you know where to add the inch now, right? and i have not added seam allowances, obviously.