hey I tried this technique last night, my alarm is the same, I went to bed at 1am, set an alarm to go off from 4:30-4:31am and I also set one at 6am for a minutes (a minute is the lowest setting possible for me)
the first time I opened my eyes for like a nano second, and I felt my body tingle, and kind of vibrate and I don't think I was conscious enough or something...because that's all I can remember? then the alarm at 6 failed to work because I was extremely uncomfortable.
I'm going to try this again tonight, sorry I couldn't help