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Something I've noticed when watching my resin printer work is that a lot of time is spent every later lifting the plate well after I hear the model unstick from the FEP.

It's not a huge deal on smaller prints, especially ones that can be printed with "vroom" settings, but on larger models that are being printed at 1-2mm/s lift speed, several hours are spent just waving the model in the air for no reason...

I had the idea of making a test model that is essentially an intentional suction cup in the center of the plate (where FEP stretch is most prominent and required lift distance should be highest). I would print this model multiple times, with slightly lower lift heights each iteration, until it fails to release from the FEP. I'd add a safety margin and set my raise height to that...

Does anyone see any fault in my logic, or know of a better method of achieving what I'm after?

For tabletop miniatures I prefer to use a flexible resin to avoid small details breaking off when removing supports or when a mini falls off the table. So far I've used Ameralabs TGM-7 but now that my current bottle is almost empty I'm thinking about looking into alternatives. At over 75€ per liter, TGM-7 is really expensive compared to other resins.

Amazon recommended me RESIONE TH72 as an alternative and there are others on the market like Sunlu Standard Plus. So far I couldn't find a good comparison between them. Do any of you have experience with any of those or other recommendations?

I've been resin printing for maybe a month. I've noticed that on all of the resins that I've got, and all of the profiles I've downloaded for them, the lift speed is usually at least 3 to 4 mm. However, when listening to my printer operate, I can tell that it is fully separating the print within the first millimeter or so. I've changed almost all of my resin profiles to only lift 1 mm, cutting each layer time down like 2 seconds, and absolutely zero change in any quality whatsoever. Am I just lucky with my printer configuration, or my fep is especially tight? Or why else would such a large distance be commonly recommended?