For bluegill, I think a jig tipped with something will usually outdo a plain jig. For crappie, I usually use a plain jig but will occasionally tip it with a crappie nibble.

Make sure your jig is small enough for BG. I wouldn't use anything bigger that 1/32 oz.

I would use a float in water that shallow -- something like a Thill Shy Bite or Mini Stealth.

I use maggots a lot, but I wouldn't use them fresh off the meat. You should clean them first by putting them in some sawdust or corn meal.

Finally, you should try fly fishing in shallow water. A popper or popper-and-nymph combo would be deadly.