One of the links extolling the virtues of CPCs noted this about the F16 connectors:
...the main fuel shut-off valve
connectors involved a unique material combination of goldplated
pins mated to tin-plated sockets. This combination is
known to be susceptible to a form of degradation known as
fretting corrosion. While a lubricant was eventually shown to
be very effective in reducing or eliminating this degradation,
this material combination is believed to be unique to this
application, in contrast to the more usual use of gold-gold
pins and sockets in avionics...
Huge "no-no" using dissimilar metals in an electrical connection that you want to remain reliable. Galvanic action, and other bad things can happen. Pretty surprised to find that all contacts were not initially gold-gold on such a critical application.
As to CPC, the problem with many corrosion preventing compounds is degradation over time. It is hard to beat a good gold to gold mechanical contact. I remember we evaluated some stuff in the eighties call "Tweek" or "Stabilant 22" that was supposedly a 'contact enhancer but it was not proven to improve anything, and I notice in your other presentation, it is specifically not recommended... the water displacement properties of the CPC may be it's best feature, assuming a gas tight connection subsequently...