Rank- Whitetails are slaves to their rumen, and will feed every 4-6 hrs regardless of light or not. More important to them is length of daylight versus dark. Once the day and night are equal, the buck's brain tells them to start chasing does. During this period they are most likely to move and ignore their pattern of normal activity, i.e make "mistakes". As to rutting activity it depends where you are hunting in TX. East TX whitetails rut earlier than the rest of the state. 1st full moon in September is the Autumnal Equinox/Harvest Moon which starts the rut, then 2d full moon is called the Hunter's Moon which is the first peak of rut, then the next full moon is the secondary peak, coming up this weekend on the 20th here in TX...a full and just after full moon are always better hunting than a new moon. All of this is detailed in Solving the Mysteries of Deer Movement by James Kroll. This also is assuming some other things like condition of your herd, is hunting season falling during this peak time or not, weather, etc., can affect the shape of the activity curve if you plotted it on a graph.....so in short, in TX this week, yes. Read the book if you can.