Onto some hams with Birds.... First up, multi-Bird light bulb experiment.
In this video, having two Birds was obviously the easiest way to do it, without filling footage with the unedifying sight of a ham swapping cables back & forth, & stops some smarty saying: "But you changed the setup from before!".
Absolute accuracy was not of any great concern.
I think I left you with the impression that I actually had taken the time to watch these three videos I linked. Where really all I was showing for our friend Mark was examples of hams who had more than one Bird meter. It seemed from their comment they had the impression that was a unique trait for the CB techs. Clearly it's not. Hence the title of the thread.
Perhaps you should have-- Alan Wolke, quite apart from his W2AEW persona is a TEA person, who has a lot of test equipment, & a great insight into the basics & "nitty gritty" of all sorts of devices.
He does have more than one Bird meter, but he also, like most on this thread, has multiple Oscilloscopes, both DSOs & analog, signal generators, spectrum analysers, etc.
The other two blokes were pretty rational about their Birds, although the last one seems to be something of a collector.
Before Mark mentioned it, I had never heard of the telepost LP100/500/700------maybe it is big in the UK.
I have probably spoken to hams with a, or even multiple Bird wattmeters, but, if so, they never mentioned it.
Personally, I am too poor to afford a Bird, & even if I wasn't, there are other things with higher priority.
I use cruddy little SWR meters from the Hamfest, which get me "in the paddock"
The only time in my working life that I have routinely used a Bird wattmeter was in the job immediately prior to retirement, where we used one to match the output power of a number of transmitters in an ISM application--absolute power accuracy wasn't necessary, just as long as it was near correct & repeatable.
In other jobs, I have just used one which was already installed inline for a "quick check", as part of a "flying visit" to a remote site.