I wasn't trying ruffle feathers.
All I know is in my trade, when we were on big jobs, where there was union & non-union guys in our trade. The union guys were known to slack.
One example, we went to a big government job, it was almost 9,000 sheets.
There had been 4 union guys there for almost 3 weeks. They had barely hung 250 sheets in 3 weeks.
Foreman of the job was pissed, his boss called in a private non-union company to get the job moving along.
The foreman asked the 3 of us, as we were unloading our tools, how many sheets we hang a day?
This job was some of the easiest hanging ever, all walls, no lids, we told the foreman, 175 sheets a day no drama, on a job this easy.
He laughed thought we were joking. We hung 185 sheets that first day in 7 hours, by day 3, the foreman chased union guys off that job.
Things like that have happened many times in my trade.