I had taken some advice from several websites (notably just websites that were about fitness and weightlifting) about only using a handful of poses, so that it was what I have been doing. Also, I have noticed gradual improvements in other areas of my physical and emotional health and suspect that many imperceptible changes are also taking place, even if the progress in flexibility seems limited. For example, I notice that after stretching I just generally feel quite well and creative, find it easier to laugh at things and do other spontaneous things. I was previously very unhappy about being so inflexible, even having unfathomable difficulties with breathing and feeling 'trapped' in my inflexible body.
I did click the link for the violently titled 'Namaslay', and I saw the cover of the book. Is it mostly about stretching and the body, because that is my main concern at the moment.