It is pretty easy to do. It is easiest in slow/still water, where you can get on top or nearly on top of the fish. DrifterWA has nailed it 1-3 foot lift, twitch, twitch, let drop and repeat. Everything is subtle with this technique. When a fish takes a swung jig, he generally darts forward and nabs it. If you feel him close to the instant he loads up the line you have a good chance of hooking him, if you feel him while he is trying to shake the hook you generally lose him (with barbless hooks).
I saw DrifterWA on Sunday up where he was hooking his fish. Later on I had 2 fish take my jig while it was just hanging about 6 feet below the boat after my very last twitch/drop.
I also had something strange happen, I was headed to just a little side pocket off some really fast water. To get into this pocket in a sled, you have to run right over the spot where the fish would be hanging at, and kill the motor. I ran over the spot (about 8 feet deep) and killed my motor. You can imagine a sled coming to a stop in about an 20 foot wide little pocket making quite a bit of commotion. I turned around and cast into the water still roiled up from my boat and the fish took on the second drop. I was surprised in such clear water that the fish wasn't spooked off that edge. My only hatchery fish of the day.
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WDFW - Turning outdoorsmen into golfers since 1994.