I have never tried it myself, but i have friends that archery hunt that have tried food plots to no avail. I'm not sure why but the mules here are more apt to be taken at a waterhole rather than at a food plot.
Mule deer will drink water where ever they find it and they don't need that much water. I have seen them drinking out of mud puddles in the middle of the road before they would drink out of the stream 10 yards away.
Once they are pressured they seem to drink at night. When I was young and trying to figure out muley's I watched them come to a water hole during the day pre hunting season. I thought I had it all figured out, but I was only 12 then. Once the season started I never saw deer at that water hole again.
Then I discovered still hunting, and never staked out anything again.
Here is an inexpenive and effective deer feeder I made recently.
No batteries to go dead, no hoisting it up in the tree, plenty of capacity, very easy to fill - so far, I love it.
I have made two of these and they are easy to build.
An empty 55 gallon drum, some 2x4's, some PVC tubing and fittings, a little bit of hardware and some paint - and you are ready to go.
I designed it so you can stand on the lower rung and fill it - the top is about 6.5 feet above the ground.
It holds about 375...