Yes, that was Mike Benson from TST.
He told me on phone (and might have even said here, as well) that the 60 minute "looking frantically" mode while displaying phantom readings is considered normal and that it's industry wide for TPMS's.
I would have liked his input on the e-mail from Pressure Pro (posted above) that their system will alert about a dropped sensor after only five minutes.
And I wonder if he would offer to trouble-shoot the guy who did the out-of-range test and didn't get notice of a dropped sensor for two hours. That can't be good.