Well if a project takes longer then the explenation, you can always fast-forward in editing like they do on the TV shows, like go from a speach, and show the first couple of minutes while speaking of what to do to get at the valves. Then fast forward time to the the last valve that needs to be lashed, or have it ready, so you can finish up the job and fire up the car or whatever needs to be done. While giving the final statement. Saying stuff like approximate times, and a corny joke.
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