We used to see some fairly priced older Jadots here (and the Ch. des Jacques Moulin-à-Vent 2002 and Clos St. Denis 1999 of newer vintages) and I am happy to say that I got to try quite a few of them. My experience, sadly much to small with both properties, is that Jadot is like Lafite in that it really needs some time after opening to show well. I am not surprised to see your note in that respect. We just received a shipment of '78-'90 Jadots to our monopoly but sadly the prices are outrageous now.
I've read occasional reports that the style of Jadot changed in the late '90's - any views on that? My one taste of the '99 Clos St. Denis didn't seem to indicate such but as that is such a negligible sample, I would love to hear from those with more experience?
I absolutely adored Giroud's Beaune Bressandes 1988 and am very, very sorry to see your Marconnets was corked.

I haven't enjoyed the Girouds that the new ownership makes, but the old ones are treasures.
I don't drink wine because of religious reasons ... only for other reasons.