Hi. I am starting on my first roller skate dress and have a sizing question. My soon-to-be 4yr old's measurements put her in the 18-24 month size ( is this weird??), except for her height which she measures in the 3T size. When I lengthen the dress, should I just add length to the bottom or should I add it in the chest? Would adding it to the chest just lengthen the bodice and mean that the waist would be lower?
I still consider myself a beginner when it comes to sewing garments so any help would be great.
Thanks,
2filles