Maiden voyage with the InnotechRV TPMS was great. So easy to set up and use...but the TST system is just as good and quite similar. I stopped at my tire dealer (who also sells TMPS) and asked - while he was rotating my Ford F250 (V10) tires to change out to metal stems ... my 5th wheel already has metal.
He asked why in the world would I want to do that, as the "rubber" valves I currently have on are high pressure valves and just as good - if not better - than the metal. He said (now this story I question, but heck he's the tire dealer!) that he has high pressures rubber valves on his truck and metal on his wife's truck. Says he has replaced the metal stems twice already, rubber still great with his TPMS on.
Sounded strange, but the high pressure rubber valves on my truck sure are stiff.
Anyway, thank you all for your input and help on attaining my TPMS. Nice piece of mind.