I have to admit I wouldn't have thought about the frameset/headset thing, but then again, I'm not a Francophile when it comes to bikes (that's my excuse and I'm sticking to it).
As for the time to list, that's always a difficult thing. I always tried to have my auctions end sometime in the early evening - usually no later than 8pm on the left coast so that if a buyer on the east coast might be interested it wouldn't be too late. But there's something to be said for family time in the evenings, too. I guess that's just a personal thing.
The only thing that really bugs me about Ebay is having to pay return shipping on an item received not as described - particularly if it's going overseas. Sometimes that can cost upwards of 40USD when one uses the Ebay-required tracking number. I've had this happen a few times while out here, and if the seller simply had included that the item had missing/broken parts in the auction....sigh....
DD