The SWC you mentioned in your initial post is also a mirrorless camera.
You are absolutely right - I meant of course my hesitation to go mirrorless digital. It is an option, but a very expensive one and I would need to part with my digital back to fund it, which has implications for the rest of the gear I use. If mirrorless prices come down even more (I have to say the used price of about 2.000 EUR for a GFX 50R is tempting), I may reconsider.
I would think the opposite would be true. In the studio, one has the luxury of a controlled environment, most probably assistants and time to set everything up. A quick release plate in the field means you can get the tripod set and the camera attached with little trouble and be ready to catch a scene before the conditions change.
I agree! While I don’t have experience with studio situations, I certainly know about changing conditions.
Plus, the debate about the quick release system is of purely theoretical nature for me: my lightweight tripod heads have an Arca Swiss clamp as their upper interface, therefore I'm forced to use the corresponding plates under the camera(s).
Concerning the tripod search, I will give the FLM a pass, it's too close to my Gitzo 1545t, while bulkier to travel with, and too expensive to just have both tripods.
I will continue to look for a Gitzo 0530/ 0531 (see my WTB ad!) to compare it to the Leofoto LS-224c, and still haven't received yet the Gitzo G0057. It seems I'm more brand loyal than I thought, but I'm just very satisfied with my other Gitzo tripods
Despite this searching effort, thanks to all the very helpful workflow hints above I feel I might be able to make the LS-224C work for my purposes. That was truly educating beyond the actual situation! I'm spoiled by tripods that are buffering away any inaccuracies in the workflow, but this will improve my technique!
I was considering to change the angle of the legs of the LS-224c slightly by removing a small part of the metal limiters to sacrifice some working height vs stability, but I will just start going down that route once I know that I will keep it.