when someone can come upw ith a real test to show me the difference, i will belive it.
two identical racks beside each other, one on belly one on back, if you can prove a diference in the snakes on either side, that is reliable. I will believe you.
For now there is no proof which works better, as BOTH methods have worked for different people.
The reason belly is so strong is because thats what is beat into most peoples heads and what has been done for a long time. at no point have i seen it proven belly heat works better, Snakes absorb there body heat from what they are laying on, aswell as the air temp.
i will be using back when I build my new room