I have to agree with Doc to many variables to pin down a specific method as to avoid RI's all together what works for me might not work for you.
I'm one of those guys who's collection is purely run on ambient temps. My winter temps are always 78-81, my spring temps go to 79.5-83 and my summer temps 81-85.
This has given me ZERO issues..
So in my view temp's and stress level like other's have posted are the key. I never handle my animals for more then 20 minutes at a time and there set up's always stay the same.
While I know slugs are not part of the OP's question, I believe slugs to be an indicator of husbandry problems.
115 Viable egg's to this point 5 slugs.![]()