Maybe you could do it the opposite way. If the first thread has already derailed and built OT momentum instead of trying to redirect tye flow, clip and paste OP's first post and make them another thread. I have assumed if they still had questions they would have made another thread. When they don't I assumed they got whatever answer they needed and that's why they didn't persue it further.

Youth lives by personality, age lives by calculation. -- Aristotle on a calendar