Most of the birds I am seeing is between 8 and 9.. I did see a nice tom this morning around 5:30 and it gobbled once only for a hen to show up and off they went.. The toms are moving around to find hens right now and if they are with one they do not show up so good. I shot the bearded hen yesterday at 7:45 so I moved from that location for a few days. I saw 4 toms on the way back to the tagging station at 8:30 go figure. So after tagging the hen I went and bought my other permit. I also saw 3 more toms between 6 and 9 this morning but no go! Then I saw a jake at 10:15 this morning so they are out there moving and if I was you I would keep trying and setting up at 4:30 should leve you planty of time. As long as you can be set up within 10 minutes of our legal hunting time you should be fine with that..