Good grief.

No one is answering. Par for the course? Can't even get a read on what league we're playing in.

Steve, it might be the forum's unique way of divvying up the members, such that you post in ALL/ALL and find only a very few readers. Or it might be no one of our large group of caliper users (I'm an example myself) has ventured out to a supplier serving up Raybestos Professionals. Or it could be brand has no bearing on it, as no corporate policy would exist knowingly to permit leaky internal seals.

I'd try to find out why it leaks, but a normal person would just take them back and with a serious demeanor, ask the retailer this Raybestos question.
--
Art Benstein near Baltimore

They rode across the Wheatstone Bridge, around the Sine Waves,
and stopped in the Magnetic Field by a flowing current.