Crappie Fly Fishing Jigs

How do you fish for panfish with artificial lures?
Yeah I know this one really sounds stupid but I’ve recently bought some artificial lures to go crappie/blue gill fishing with. I mainly just have some grubs with jig heads and some little flies. Whats the best way to fish em? How do you retrieve? Should I just tie the grub and jig head on or should I put on some BB weights? Do you use a bobber? How far can I expect to cast these on an ultra light rod with a spinning reel full of 4lb. line? I’ve always fished for panfish with crickets but want to try something new.
Use a light spinning rod, 8 or nine feet long, rated for 4 to 10 pound line (using an 11 or 12 foot medium light action spinning rod will give you a greater casting distance). Use 4 or 6 pound test. Tie a plastic grub on a 1/16th ounce lead jighead to the end of your line and about 6 or 7 feet above the jig, maybe even 8 or 9 feet, put a clear bubble float. No need for a barrel swivel or a fluorocarbon leader. Cast as far out as you can near a weedline, brushpile, or other cover and if there’s any wave action on the water, the float bobbing up and down will give all the action to the jig below. If there’s no wave action, hold the rod high and give the tip subtle twitches and jiggles. Underneath docks are a good place too, if you can manage to get your float up under them.
Simple Crappie Jig