It takes a lot of practice to be smooth enough at doing it to have a nice result over any large area before the concrete sets. It’s not the type of thing that benefits from going ‘hmm, maybe I should do it this way’ after you’ve started.
Also, it’s much, much easier to do as a small crew - easily 3-5x more productivity per person. Same as drywall. It’s not easy to do as a solo worker, even if you know the tricks.
It takes a lot of practice to be smooth enough at doing it to have a nice result over any large area before the concrete sets. It’s not the type of thing that benefits from going ‘hmm, maybe I should do it this way’ after you’ve started.
Also, it’s much, much easier to do as a small crew - easily 3-5x more productivity per person. Same as drywall. It’s not easy to do as a solo worker, even if you know the tricks.