ataxian
PALE BLUE DOT
I have had 3 sessions already in about 2 hours I try it about 110f.@ataxian I forgot to check my water temp yesterday for you, candy thermometer is reading it at 130f at max and I don't usually introduce hot water to "cold glass" right away. So around there, probably 100-130 range is my preferred water temp.
My water is normally about 75F in general.
Correction:
Sorry I have done 4 sessions today so far!