It went pretty fast with the exhaust, so there's not much I can say really other than I think it went to more finals without the exhaust than with it...it's just data available from the thread.
Another piece of data available in the thread is that you've lost at least one final while making a PB&J.
Accordingly, it may be of benefit to reconsider both the installation, or lack thereof, of your exhaust system; as well as the ingredients with which you assemble your sammiches;)