You are not going to get any support from people here with this line of thought. They have seen too many instances of badly burned animals. Heat pads fail. When they do they can burn a snake to the point of 100's of dollars in vet bills if not death. Ball pythons are stupid when it comes to heat. They do not act like a lizard who will move off of something that is too hot. If only cold options are available, they will cook themselves rather than be cold.
You can listen or not, but you are basically disagreeing with people who do know. Kind of like telling your mechanic how to fix your car when you don't even know how to change a tire.