"Surely to gain any meaningful conclusion you need to perform the same identical test with all the models concerned."
I don't think so. Dyson (the man) said that Bosch (the company) made that particular Bosch (the vacuum) and it uses a lot more power than it is rated at. Bosch (the company) said it doesn't. This can be tested without checking whether a Dyson (the vacuum) also does.
Biting the hand that feeds IT
