As soon as the crappie start moving to brush or structure, I change from tight lining and trolling to single pole vertical jigging. It is the method I learned to crappie fish with and the one I like most. There are different varieties of jig fishing. Some folks like to cast or pitch jigs to structure using 6 to 7 foot poles, some shoot jigs to structure using 4 to 6 foot poles and others like myself prefer to vertically present the bait using longer 10 to 12 foot poles. Another variance is in the approach. Some, like Crappie Buster here on CDC, prefer to pull the boat up near the structure, drop the trolling motor and thoroughly work over the structure being fished. S-Town and myself each prefer to use a tiller outboard on a jon boat, switching it, in and out of gear to hold the boat in place, pull up to the structure with the motor running, fish fast, catch the aggressive fish then move to the next spot. It is not uncommon for me to fish well over 100 spots in a day of fishing. Some spots will be hit multiple times during a day if they're producing well, or are known to produce well. During the last tournament I fished in, I fished a couple of brush piles 4 times before they finally held biting fish. As long as your not back washing the area your fishing while shifting the motor in and out of gear to hold the boat in place, the running out board has no effect on the fish. If your able, you want to swing your jig out and away from the boat slightly beyond your target and let it free fall watching your line closely. At times the fish will be holding a foot or so below the surface of the water, regardless of how deep the brush your fishing is. This is what you want, as the fish are easiest to catch when they are up. If you read enough of my late spring and summer thru fall post, I always reference when the fish come up. This happens at some point every day. The key is being where the fish are when they come up. My experience is that bright sunny days are best for brush and dock fishing as the fish tend to go to cover to avoid the light. Cloudy days and early mornings tend to scatter the fish making trolling a better option during those times. During high pressure times the fish tend to stay deep holding tight to cover. They are catchable, but a lot of jigs are lost fishing deep and tight to the brush. So, the bottom line is this: Fish fast, catch the aggressively feeding fish, cover a lot water, be where the fish are biting best when they come up. and pick days that are bright and sunny. I hope this helps you out a bit, as this technique can be a fun, exciting, and very effective method of catching limits of fish with out buying bait.