Hi cracksinthepitch, I have got a pair of spotteds, 8 months old, about 60cm long and 60g.
I'm trying this in my clickclacks for my 2 spotteds.
I have a 2 location thermometer from the herp shop and drilled holes in each end to put the sensors through on one clickclack.
At the cool end i just sit it on the top of the substrate, about 1cm thick.
At the hot end i have put a bit of foam around the sensor and it is buried in the substrate.
Hot end runs 27-30 night, to 32-33 day.
Cool end 15-20 night, 20-25 day.
I use a B1ME with the sensor wrapped in some paper towel and sitting on the Heat pad between the two clickclacks.
Don't forget to monitor humidty as well, if your putting in heat the air can dry out, I keep mine at about 60-75% - a water bowl close to the warm end helps.
I have noticed that to get 32 on the surface of the substrate I need about 34-35 from the heat mat.
I figure that pythons lay on the substrate, so that temp is more important than the air temp.
To get air temp up to 32-33, you would need much hotter floor temps.
You may already have a non contact thermo - but if ya don't Dick Smith has some basic ones for $39 - bargain 6-1 spot ratio and +/- 2%.
In the summer the temps in my enclosures were 35-37 and they didn't seem to suffer.
Basically it I have read if you go 20-25 cool end and 30-34 hot end they will work it out.
Geez I've been ravin on!
