The first time I went to Cedar Creek, I fished along the standing timber just across from the main ramp and completely destroyed the crappie. I probably had 10 keepers that day (larger than 12", at that time, mind you). Never really been back on the south end of the lake since last year (in the summer).
I agree with you on the "meat hog," thing. I have heard that, as well, and I have yet to see a Fish & Wildlife employee on Cedar Creek the times I have been there. This worries me, as it is a shame that a majority of people would keep an undersized fish rather than put it back.
Are there gizzard shad in Cedar Creek? I wasn't aware that there were any in it. I heard lots of reports from the tackle shop that people were catching MANY undersized crappie, so something is going on that shouldn't be. It's a shame, but they can put all the limits they want to on the fish: if they aren't enforced, very few are going to be respectful enough to follow them. Too bad a few bad apples always ruin the entire barrel.
What exactly is a "Blacknose?" Do you mean Black Crappie? I've yet to catch a white crappie from Cedar Creek... so I wasn't aware they were there.