Thanks for the clarification, Jay. That was the way I used TEA also, and I agree that simply filling a syringe is faster at the actual developing stage. But to get your PC-TEA concentrate, you have to heat the TEA first to dissolve the Phenidone/ascorbic acid.
I think we're talking about differences of seconds, not many minutes here, and therefore, it's really just a matter of habit and preference. I have a whole gallon of non-toxic antifreeze (100% propylene glycol) to use up, so I'll probably use it for my Phenidone/ascorbic stock and continue using washing soda or Kodalk as the activator.
As I said, I haven't seen in my negs evidence that TEA is a superior alkaline to metaborate or carbonate.