As far as I know, no one here is a proponent of Filbert. It's just a conversation..
I would suggest that many upper-level Scientologists are extremely familiar with that tech and have a high level of certainty that it really works!
Personally, I get wins from that tech virtually every day when I am studying and insouciantly moving around the identical assortment of used MEST batteries, on this planet!
And, yes, we know about battery designations.