How reliable are Tusa Imprex regulators for advanced EANx tech dives no deeper than 150 feet? I realize they aren't the highest quality regulators and that it's ultimately my life on the line and all that. Just want some opinions from people with experience with these regulators. I live in FL so they will only be used in warm water. I dive wet so I wouldn't be in the water when it's cold enough for regulators to start having difficulties.