You might have the tires rebalanced with the wheel simulators and sensors on the rims.
When I was doing research for my TPMS, I read review comments from others, that several different type of systems would throw the tires out of balance, including valve stem extensions.
I don't believe there is any TPMS that is better than others, it's pretty much personal preference on the system that meets your TV/TT configuration.
2016 Forest River Heritage Glen 276RLIS
2012 Chevrolet Silverado LT 3500HD Duramax