Thought my experience might be of interest. I am taking part in the Etape and have decided to load with tri-basic Sodium Phosphate. I started on Tuesday intending to load 4 days this week followed by 3 next week starting Wednesday. I took part in a 10 m TT this evening and was 22secs slower than 4 weeks ago on the same course. There was a heavy cross wind and all times were substantially slower including a clubmate who was down 1:08 (others were off by 1:30). I am no fitter than I was previously so can only assume that I had about 30-40 secs advantage from the loading. It was noticeable that I had no problems with the legs but I was restricted in my breathing. I was cycling for some time at 95% of my MHR. I will finish the story after the Etape if I survive!
Sean
Sean