First, after a period of time all of the observations about the Ashtanga practice become highly specific to how your brain is wired and how you have treated your body so far. So whatever you report is not really a tip and therefore just maybe fun to read or procrastinate with. Second, I am no longer afraid of backtracking into being a slob that does not move or bend if I miss a few days because my body starts screaming for a stretch, a twist, and an upward facing dog. Moving, or more accurately intending to move becomes complicated without the practice once the body gets used to the benefits of asana. And third, at the age of 55 going on 56, the first practice after a few days of rest feels actually good and not stiff at all. Weird? Remember observation #1.