Hot spots is something that occurs at temperatures where you need active cooling, at that time the thermostat has already opened to some degree, and the electrical pump flows the water, better than the mechanical pump at idle or low engine speeds.
There is one design attribute of the V6 cooling system that needs to be taken into account when fitting an electrical pump as the only means of flowing coolant through the engine, it is the thermostat design on these engines. When the engine is cold, the thermostat is closed to the radiator, but redirects the flow back to the pump intake, thus having the coolant recirculate through the engine block until such time that the thermostat opens.
If you remove the thermostat in total, to use only the electric pump controller for regulating the temperature, you would need to block the recirculating port, else a lot of the water flow will not go to the radiator, but just recirculate through the engine, and that will lead to overheating.
If you want to remove the original pump impeller in total (I would not want to do that) its best to leave the mechanical thermostat, and drill a smallish hole into it in order to get some circulation at the colder temperatures.
I cannot think of an easy way to use the electrical pump to completely copy the flow pattern of the mechanical pump when the thermostat is closed (ie cold engine) without serious plumbing mods, but at working temperature engine and recirculation blocked, either by the original thermostat or by other means, it is doing the same job.
Sorry for being lazy with the camera, will take photos this evening and post tomorrow.