Thanks Alpine... appreciate your reflection here

For me, as an enthusiastic amateaur am just interested to see if it makes a difference to my LT or to the preceived ease or pain I have in completing an intense race.

For others trialling this at a much higher level of racing I guess it will remain to be seen whether it can assist in precious seconds.

As you say - so many variables...
At the moment the weather is calm and mild - what if i battle a wind this afternoon?

How I perform toady will be different to how I would perform in 2 weeks time when I will have my period.

I have taken notes of food consumption for the past few days... and if I feel NaPO4 makes a difference today, I will try and replicate the same race (food, pre-race week rides, rest etc) without NaPO4 in a few weeks, and then again with another loading period.

Its about as scientific as I can get. I'll get back here this evening or tomorrow and give my opinion as a "user".