I agree, trim codes need 2 separate lists, possibly 3. In conjunction with 8WM you need a "is","could be", "isn't".

Also, what about Blackouts? They can be a good telltale, especially the black door handles. I think Ozbox had a really rusty wreck he'd spotted as a Sandman cause of the black door handles. It's a nice easy one for the laymen as well.