Stinkfoot had some good info in his post. I just wanted to add that if you can hold at the head of the hole, then do so, regardless of the size of the hole. You'll get multiple presentations and much more coverage from an anchored boat. Another thing, when bouncing and moving I feel that the line angle is important. Try to keep the bait bouncing just out in front of the boat at a 40-45 degree angle. If the boat starts overrunning the bait, then lighten up on the lead. Most of the time during fall a 3/4 to 2 ounce weight is all you'll need while moving.