I never overcame the shock/loss and am still living in denial...
I have been looking for a suitable replacement since. While I look I shoot a roll of Panatomic-X here and there to see how my search is coming along compared to my known favorite.
I tried a little of everything and my best candidate is 4x5 TMY-2 as a direct replacement for 35mm Panatomic-X.
Huh? You say? ... Yes, that's right. I went up to 4x5... And at that rate, I no longer pine for Panatomic-X because... 4x5 is better.
But when I do shoot 35mm...
The thing I appreciate most is that prints from vintage negs and prints from current negs on 35mm Panatomic-X are indistinguishable.