Suz, yes, it adds up, which is unfair and a reminder clothes are mass-made for another body, and that ours isn't in the "norm". Whatever that is. How mass production affects our perception of a norm relative to our bodies, in a sneaky way.

Please post pics of the RL one when you get it!

I'm so happy you're staying with your current sheath, because, after looking at the links you provided, I still really like yours best. Plus, Angie's suggestion to take a look at Theory just may be the perfect diversion for you in London and what a sweet memory that would be to bring the new one home or at least to have the great of experience of shopping for the elusive sheath dress down those many lanes and streets abroad. You look spectacular in your current one!