Re: Confusion and chasing your tail...a long one.
Don't ever underestimate the importance of tire air pressure. Check and double check for leakage around the valve stem.
And the power band should never be neglected. It should always be correctly adjusted. Especially the leather style power bands on the older models. Keep them properly dressed for maximum efficiency.
Oh, and the most important thing to remember is to not listen to a single word I say.