RE: Personal food plot/secret spot
You'll probably get some varied answers here -
I actually tried Secret Spot. A hunting companion that hunts with us occaisionally sent a couple bags, and asked that we plant - near where he hoped to hunt the week he was up. He was kind of kidding, but also hoped the small plots could be effective for him or us.
We planted one bag in an overgrown orchard, that definitely did not get enough light (maybe 3-4 hours - filtered light at best). Some of the seeds grew - but it really was light - and one deer serious about eating the plot - could have had it all gone in a day.
The other plot was put on a gas line right of way - with 8 hours of direct sunlight. I used a set of disks to prepare this little 50 ft plot - but I did not spray roundup -. We had some clover come, and I remember the chicory - because I did not recognize it. The plot was used by deer - but I'm not sure it was used any more than the natural growth on the mowed pipeline was. In fact by the time hunting season came - it was hard to tell the difference at the plot, than the rest of the pipeline.
I for one think there is no quick fix. Truthfully - I think if you are interested in attracting deer during the hunting season - its tough to beat annual rye. You can plant it 3-4 weeks before season -with little prep- and have an attractive growth that the deer will eat heavily in Oct & Nov.
Bottom line - "secret spot" will grow - but the little bag is just so small - its tough to imagine it having an impact on a deer's choice of forage options.