(By the way: if threads digress as widely as this one has from the original subject line, is it customary to start a new thread? Just wondering).

The custom on this board has been to follow various permutations of a thread as long and as far as they'll go. Occasionally, someone will start a new thread due to an inspiration from an old one, but that seems to happen only when the conversation on the new idea hasn't really gotten started yet on the old one.

Reading threads on the AWAD board is an adventure. I've learn more interesting things here by accident than by purposeful inquiry.