Yeah, I always take my second Spiro after my evening jog. And by the way, I am totally confused now... again. I did finish my usual 8 km distance today without any stops, I was sweating like pig and I was running slower than I used to when I was not on the HRT. Nevertheless. during my final route, I was able to keep up very fast pace (about 4 x faster than my standard pace) for about 5 mins. I have no idea where did that energy come from, but it looked very much like typical T-endorsed stuff.