I should have been more clear in the 1st post. They both displayed movement/reading. It went up to 150 or so (yes, on the Hydra too), 123ish, 0, and would jump back up to 100-150 here and there.
"The RPMs on dash and in the software blip up around 120RPM or so now and then during cranking." Page 1 of this thread, Saturday 4/2/2005.
This was one of the first things Hydra EMS had me try on the phone.
You'll have to excuse me, too, if I'm not finding your humor in it.