No question about it large plates are extremely difficult to coat but that's a technical challenge and not an artistic one. Sally Mann's work comes to mind when I think about using process artefacts to enhance the works emotional content. Maybe I was beeing a little harsh in my first comment but I just came back from a week looking at 19th century wetplates every day from 9am to 6pm and they were mostly flawless even the large ones.

Again thanks for the link

Dominik