I haven't messed with lightkits that much, only because they don't allow for much customization
When I used one for my group Avatar, I attached it to the rootTransform bone on my SFM logo model. It turned out ok, but I'd rather place my own lights.
Did it show the bounceLight, keyLight, fillLight, and the fill2Light when you applied it?
Yeah, but it was too much of a hassle to go through and edit each one, in my opinion. I prefer to have more control over my lights.