What I did do (just back) was connect the radio to the timer. Set timer to 5 minutes, when radio dies hit timer again. Radio dies, move to stop. Count to 30 in head. Move to fix, agitate 10 seconds. Set timer to 3 minutes. Hit it. Radio dies, lights on. And the best part, on radio there was a documentary about Status Quo! Worse thing can happen than standing in dark rocking a tray while listening to "You're in the army now"
One question. I noticed when I stood in the dark that I, more or less, constantly agitated the tray. Couldn't help it. Should one follow tank-guidelines for agitation when doing it in trays? What effect will over-agitation have? The opposite of stand development I guess. And that would be.....?