I can only speak from experience and I have tried both cooling and not cooling. I have had good success with cooling my animals down. The only thing that I have seen that is different is my males don't seem to be very interested in females when they are not cooled. I think that is has to do with the cool down causing some hormonal release that not only helps them produce sperm but also that will also cause more interest in females. I don't know how true that is but that is what I equate it to.

I normally cool my snakes down to between 78 and 81 with no hot spot only for 12 hours at night during the breeding season.

Just me experience, I hope that this helps.