Shureflo pumps overheating,.....but not really.

Never had one overheating on me neither.
But the note about pump running dry for days made me thinking. I measure my pump draws 2.6 amp running freely and 5.6 amp when coming to cut-off pressure.
When we take shower, we just open the valve, so with lower pressure the pump runs constantly with lower resistance.
I can imagine that when you try to save water and let it drizzle from the faucet/shower - the pumps constantly works at higher pressure/resistance what has to make it hotter.