I have actually used SS316L claptons with therion 133 for some time now, with different attys (griffin 25, limitless xl, tfv8) and couple different profiles for SS.
Common problem seems to be that mod calibrates resistance too low for some reason, result is that I get too cold vape on TC, only solution so far ive noticed is to preheat coils a little, say 0.5sec on VW mode, then remove atty, make mod understand there is no atomizer anymore, attach it and setup it as new coil.
After this locking ohms to 0.02ish higher than originally seems to fix the issue. Vape is now within temp range I wish it to be and stay there.
When doing claptons, failing to connect only core is certain way to make this matter worse, eg. Mod wont stay in ohmlock anymore.
I have no idea why this happens but I hope this helps someone