Water Wetter, Evans NPG+ watterless coolant, who's right?

[Maengelito]

my integra had a thermostat that was stuck open for a few months before i replaced it. when i got it up to operating temps the water temp gauge would be between 1/3 - 1/2 up the gauge. however when i started driving, the needle would go down to about 1/4. now i know the oem water temp gauge doesnt mean shit, but on a relative scale, it was telling me that the coolant was being cooled too much. i know it doesnt have much to do with how water wetter effects when/how long the thermostat stays open, but i learned that the cooling system was built to handle much higher temps, so perhaps the temp exchange occurs much quicker which means if for some reason the motor is running very hot, the temps can be lowered much quicker.