By way of introduction, everybody, Sinclair2010 has a great
thread going--err, sort of fizzling--over on Virtual Stamp Club. The structure of that board is a bit different, and seems to lean in the direction of long-lived threads, as opposed to the "post a question-answer a question" nature of SCF. Pop on over and have a read, it's worth it.
There's no doubt Sinclair and Bantr are very knowledgeable on the 3 cent 1851-61 issue. Makes me want to buy more 10s, 11s, 25s, and 26s just so's I can ask 'em questions.