I think something that needs to be remembers is that doing back to back runs, the margin of error should be very close. This means that you will be able to put your bike on a DynoJet Dyno, get a bench mark, make some changes, run it again on that same dyno in a short period of time, and be able to see the difference in the changes you made.

If you have your bike run on a dyno at one shop, bring it to another shop a year later and expect to be able to reproduce the same readings then your just missing something up stairs.

Also as a side note. I would NEVER take anything for gospel about how bad a certain product is over another when that information is on the companies website or literature that is claiming they have a better product. It's called advertising and marketing. Politicians also play in this game, and I don't beleive them 99% of the time.
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Charles Gallant