ETD, the soybeans should actually spin better than corn, being round. I don't see a problem for deer to have to scratch a bit for rewards. Its been many years since i ran a feeder but sometimes the grain wanted to keep falling out of the 55gal barrel past the spinner. I'm sure they have perfected that problem. Soybeans are probably higher in nutrition than corn which is really fairly low like 8% protien. Corn prices went very high here in the midwest close to 10.00/100 lb, how's corn in Texas. Right now the deer are feeding on neighbor's landscaping plants as feed is hard to get in the woods.