i wasn't questioning your integrity.
i was just noting that where you said, "I don't use RMS, I use peak voltage for peak power. Average power is half of peak power. Most amp manufacturers list peak power."
there is no such thing as "peak power", "average power", or "rms power", though those terms do get thrown around avs and other forums quite a bit. they are made up marketing terms or terms used by folks who aren't clear on their meanings. "peak" and "average" (and "rms") are terms that apply to voltage.
i suspect the problem here is that power has a clear definition in physics and everybody (except behringer who fudges it a little) uses the term to mean the same thing. you are using it differently.
where amp companies refer to "burst" or "max" power, they are still using averaging. it is just averaged over a reduced number of cycles, such a 5, 10, or 20 instead of something like a 60 second test. i have never seen an amp company, even behringer, report any power rating based on peak voltage. that would be rubbish.
also, just a heads up for your business, in the united states, amplifiers that are sold to consumers have strict definitions for how they market power. 50 years ago, it got so out of control the government had to come in and set a standard. that is why all receivers/amps/etc. report the same way. the pro amp companies get around that standard because their customers are "professionals" who are expected to know better. if your customers are not professionals, then you have to follow the consumer convention or you can be sued and you will lose because violation of a code is a violation of a code. see "amplifier rule" 1974 and confirmation of the "amplifier rule" in 2010.
the convention that you must follow is listed in this document: