I've tried it again, but it didn't work as well as the first time (too excited, I think). I can get to the vibrations stage on command and within a couple of seconds, but I think I need to relax a little more to actually see any imagery. I did notice the black of my eyes 'extending' beyond the border of my normal vision (sort of it flowing over you), and when I moved my eyes my physical ones didn't respond, yet a dream-version did. I'll try again tonight.

And on the subject of dream recall, I remembered two today, quite vividly as well. So I don't think I have to worry about it interfering somehow. Also, the quality of my sleep seems to have been improved, as I didn't get enough today (six and a half hours), and I'm barely noticing the effects.