Another timing curve question

He claims to have done 15,000 distributors in his career, and how dare I question him (in almost those words). :realcrazy: I hate dealing with egos, it's bad enough I have to put up with it from colleagues in the medical profession!

Anyhow, PM sent. Thanks in advance.
I would love to have my own machine, even though I'd rarely ever use it again! I have the space and $300 is reasonable. Not so much the shipping YR paid ;)