So how should I have phrased my question?

Which component needs the “unlock” ?  The 372 or the 700?  Either way, I need a better correction signal for running pivot AB lines.

Centerpoint still needs unlock to open, correct?

Dealer is as lost on these Pro700 as I am and are now trying to get up to speed on new hardware.  They had the best GPS guy in the business but lost him due to a non compete clause with previous employer. 

I am currently running Centerpoint RTX on a FMX as well as HP/XP on FMX.  Pro700 are just cumbersome and poorly designed IMO.

Thanks for the replies, my goal was to have a concise thread for everyone to reference.  Search for this topic and you will see there is no such thing currently on the internet