I know it can be done very easily. I have GREAT success stocking crappie in small ponds. Sometimes they dont spawn for years at a time, but sometimes they have a spawn that is simply overwhelming. That aspect of managing them is pretty unpredictable, but your success will depend on your goals and time spent on the water. If HSB are just for crappie predator I definitely think you should scale back feeding to a very low dose during the spring and summer months, but still keep feeding them just a small bit for supplement.

My best success with growing HUGE crappie in a small pond is to stock about a dozen or two adult crappie per acre into an established pond. Those fish routinely grow into 14-16" crappie real quick.

I havent stocked just a crappie pond though, but definitely want to. I just need to come up with an empty pond this spring and someone willing for an experiment like what you got going Doc! I have a feeling you will thoroughly enjoy the process for years to come, please keep us updated. (BTW, if you do need to harvest small crappies in your pond, I can teach Greg a few tricks for doing that pretty quickly!)