Well, last TT of the season this coming Saturday.

I have some Sodium Phosphate leftover from last year's "test", and have decided to use it up this week.
I did a TT on Sunday which gives me a good indication of my current performance level.

So I'll start loading today (4 grams per day for the 3 days before race day) and see if there is a more discernable difference than my last "I think so/maybe" conclusion.

I'll keep you posted.