Originally posted by gatorguy I use a Sekonic 308x for metering initial Godox strobe setups and ratios indoor/in-studio fairly often. Bracketing shots at a fast-paced shoot isn't realistic IMO and I already spend too much time in post after a session. I wouldn't consider one useless at all.
You're right about outside ambient lighting where there's probably only few extreme lighting cases for which a handheld meter would be helpful, but still not necessary. Snow always causes problems from what I read and sun glancing off water at a beach shoot gives me fits sometimes. I suppose after another couple of years (or more) of regular indoor portraiture I could reliably guess at the setup and not bother much with the Sekonic but I'm not there yet.
Speed is probably the difference between approaches.
My bracketing and post comment, was for outside shots. Tethering and building the lights up comment was for studio. I wasn't very clear. Sorry.
Thinking studio, my experience for portrait is limited and my models have not been jumping around. Therefore setting the lights and then myself and model assessing the shots on my laptop has, so far, proved a effective way of working. It's maybe too slow an approach for some. When we're over this Covid crisis, I'll be able to pick up my portrait shooting and continue developing my techniques, maybe then I will think about a meter ...
For product/still life shots, there's absolutely no need for me to use a meter as, again, the process is to slowly build up the shot, checking all the time on the laptop. I rarely use more than 4 lights, but with flags, mirrors, reflectors, modifiers etc, the process is naturally slow and methodical.
So maybe speed, and possible complicated portrait lighting, is the difference.