I tried on my voile regency last night with all my underpinnings, and it works! I am so happy with this. I started with the Period Impressions Bib Front Gown pattern, just started improvising (based on some diagrams in Bradfield's Costume in Detail and 19th C Costume in Detail), and the result wasn't a total failure. I have to say I was a bit surprised. I only have to finish the hem.
Sorry for the low light in the pictures--it was dark!