When I restarted HRT I was 5'8" but after 2 years on HRT and with my increased wight on my bottom and hips and more projection on my chest, I have found that my centre of gravity has changed and it is much easier when standing to arch my back, also I appear to have dropped an inch in height. So I voted 5'7" in stocking feet.
Mind you I like wearing 2.5" heels so it puts me up to 5'10" in heels.
Judith