I don't cool either. The hot spot stays the same temp year round. The ambient temp may change with the room during the different seasons on it's own, but cold side in the tubs tend to stay 80. Personally, I find that cooling manually is just another unnecessary extra step. But that's just my opinion. And my boyfriend cooled his snake last year. Unfortunately she developed pneumonia. So I would rather just rule out potential illnesses by keeping the same temps year round since they breed fine without cool downs.
I find that barometric pressure has more to do with their breeding behavior than temps anyway. Rain makes them frisky.

I know everyone has their own method so good luck this year!

Sent from my DROID RAZR using Tapatalk 2