Ml, I do not want to overstep my bounds on this subject. I have almost never shocked a pond without bluegill. I see the point about competetion but the crappie need some forage as well to grow to good size. I maybe simple minded but still think key to large crappie in small pond is keeping it bass heavy to control numbers. I'm not really sure what other effect populaiton dynamics will have. Good luck if you try it!