Morning or Evening?

The past Ashtanga week was finished with a great group practice on Friday evening. There are some serious Ashtanga practicioners here in this area and sometimes we meet for practicing together. Such a practice took place on Friday evening, we were three women. My practice was so fantastic that I started asking myself if it had anything to do with practicing in the evening. Most of the times I practice in the morning immediately after getting up. I'm very used to the feeling of a morning practice. But practicing in the evening happens very rarely, so this is always a rather new experience. Of course in the evening we all are more flexible, this is a fact. But I don't think that this makes the big difference because I don't care so much if I'm flexible or not. Only the backbends make a real difference I think, they are so much more open in the evening that it's a pure joy.
Then I guess I feel lighter in the evenings. This may sound quite strange for most people, because how can one feel lighter at the end of a day full of food? The reason is I don't eat very much for lunch when I'm at work. Only some vegetables, potatoes and things like that. Usually I start getting hungry again at about 4 p.m. to 5 p.m. When the evening pratice starts at 7 p.m. I'm usually already starving. The consequence is that the body feels very very light. On the other hand we often have dinner very late, so in the morning after getting up I sometimes feel still full with yesterday's dinner, therefore rather no lightness in the morning. Perhaps I should change that and have dinner earlier.
The next issue is the calmness of the mind. Here also most people say that the mind is calmest in the morning immediately after getting up. Strangely I often make the opposite experience. It seems to me that it's easier to focus and concentrate in the evening.
And the most important point for me is the general flow of energy. During this Friday practice I had such a great flow, I could feel very intensely how the energy built up inside and how it flowed through the body, wonderful. At home I don't often feel the energy in this intensity.
Should I start thinking about practicing in the evenings? Hm. I don't know. Perhaps I should first try an evening practice alone at home. Because so far the evening practices were mostly in a group and in a different surrounding. Perhaps this is the main cause for the experienced differences and not the time of day. I'll check this out.
Today started the new Ashtanga week with a good practice, Primary plus Intermediate up to Ushtrasana. It was a little bit tedious and stiff but all in all an ok practice.