|From Napoleon, His Army and Enemies|
|Rousselot image from http://www.unimelb.libguides.com/content.php?pid=163092&sid=1377410|
I reckon that's conclusive enough evidence for me! What I'll do is get rid of the chevrons which, as Rafa pointed out, are indicative of the Bardin uniform changes, and go for the bands around the top and bottom of the shako as indicated in the images above.
On another tack, I'm a winner! I've managed to score the above book from the generous Burkhard at dhcwargamesblog in his blog-birthday sweep. I've heard lots about this controversial book, but haven't got around to finding a copy, so here's my chance.