KSBASS, I used to work in KS, but have been in SD for a long time. In SD, we can't keep smallies from reproducing in our ponds. :-) However, that sure wasn't true in KS. KS is more like ponds in the southeastern US where reproduction (or at least survival to adulthood as Sunil said earlier) was much more erratic. We had our best luck in KS by ensuring that the smallies had rock habitat, even if we had to put in spawning tubs with gravel inside. However, I would sure bet that your hauled-in rock will give them the spawning habitat, and then will also provide needed habitat for the age-0 fish after they are hatched. My best guess is that you have done well.
Walleyes will cause you no problem. However, you don't have a really strong prey base [I am NOT saying there is a problem :-)], so I simply would not overdo the walleye stocking. If you want to catch and eat a few walleyes, you'll need to occasionally re-stock with some advanced size fingerlings (maybe 6-8 inchers as a general idea). Just keep them as a lower density, "bonus" type fish.
