The Ascorbic Acid to Phenidone ratio in Pat's published formula for PC-TEA is 36:1 (9 grams L-Ascorbic Acid, 0.25 grams Phenidone).

The only sign of reduced developer activity was when (after 10 8x10 prints) I added Benzotriazole (and this was expected). The working developer remained at that lower activity level until I "kicked it" with a teaspoon of sodium carbonate.

It remained at that higher level of activity (8 more 8x10 prints) until I poured it down the drain.