Ya, I read that last year in Cycle Canada.
It just goes to say that it's a great tool for tuning but not for getting 100% accurate results.
I think most, if not all, of us realize that our dyno results are not written in stone and many factors can alter the numbers. But it does work for tuning, as adamantium mentioned, and also for hanging out and comparing results like we did.
Just for fun, and even if the dyno is out, if everyone is done at the same time, we still get an accurate comparitive result. And it may even draw your attention to a jetting problem that may have gone unnoticed otherwise--whether or not this is good is another question as it invariably leads to spending more $$.
B-r-a-d-l-e-y...Why? Because I'm Bradley!