I just finished cutting the TST sensors off my tow Dolly due to galvanic corrosion. It cost me $250 to have them cut off the tires on the MH since the valve stems then needed to be replaced which requires the tires to be unmounted. I think they have since taken out the warning not to use any lubricants or other chemicals since I'm assuming this was a common issue. They're happy to replace their Chinese sensors when they go be but have no interest in speaking to you when you have a real issue.
I've since added a Dual Dynamics Crossfire and like the pressure balance feature, the visual indicator, and the single point of adding air. I stop every two hours to move around and use that time to visually inspect the condition of my tires
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