Am I one of the few with no problems with orders from Howard Yount, Cappelli or Passaggio Cravette? Cappelli make bespoke orders for me twice without a hitch. I don't recall having customs duties either but I may have forgotten. OTOH the duties for Charvet were brutal and unforgettable.
That's a fantastic video! Great insight to the architecture of the white tie rig and it's descendants. I think the issue with summer wear is how to make it look elegant and not wear too hot. Currently, the best alternative I have to the tux is a blue mohair suit.