Ha, ha ds1984. Trying to put words in my post!
It was a fine opportunity for EC to prove that he can still play some magic (like the Cream records or Blind Faith or even better -but not appropriate- Derek and the dominoes). It didn't happen, I don't know why. Do you think that Roger told him NOT to sound like David? Jeff Beck on Amused to death didn't even try to imitate David and we got fantastic results (In my opinion, not that similar to PF) . After all "Pros and cons..." was suggested at the same time with the Wall, so it had the PF feel right from the start.
Do you know something about Eric's involvement?