Well I was wrong... the 2nd Fed ECU also behaves the same as the 1st one WRT the bouncy / high idle. Still futzing with it.
FYI... I wrote up a "How To" on converting the Cali VX to a Fed VX here:
Converting Cali Civic VX to Fed (lean burn) VX. Actually I didn't really write everything, but rather combined information from a few sites.