I would agree with your statement about temperature, however, remember, I am not an expert.
My seeds have been in the germinator at a constant 86 for 5 1/2 days and no sprouts. I am very anxious for the first seed to sprout. Since I waited until the age of 50 to get married, these will be my first kids.
Yeah, some of these guys put us all to shame. I'm always embarrassed to post pictures of the garden after seeing the beautifully weed free beds some of these folks have.