So when rigging a worm wacky style, whats the best technique to use? Just let it sit there, or jerk it, swim it, what?

cast it, let it hit bottom, jerk it 2 or three times, repeat.  Hold on tight cause those bass love wacky worms.

weightless or no?

weightless always. i usually just let it sink, then sit there for about 2 or 3 seconds and repeat.

aaron

Just twitch it, let it sink, and repeat.

Whatever you do to "work" it will be too much.

Cast, let if fall on slack line.  Wait, wait, wait, .....bottom......wait, wait, ...slight lift,....if nothing, repeat.

PS-Keep an eye on that line at all times, looking for the tell-tale "V" wake.

the effectiveness of the wacky rig is the action it imparts to the plastic used.any weight would kill the action.even the weight of the hook affects the action and rate of fall.in essence the weight of the hook is your weight.let it fall on a slack line as to impart as much natural action of the plastic as possible.let it sit as long as you can stand it.pull up to surface and repeat process.lately ive been pitching a wacky trick worm and senko up against grass lines.the bass are in the grass, let it fall pull and pitch again.

How deep can you generally fish a wacky rig, and still have it be effective?

FISH HAPPENS, on a calm day in clear water, you can fish as deep as 10-12 Ft. max. IMO the tactic gets tough to detect the bite after about 8'. Sometimes I will fish deeper grass lines by letting(counting down) the bait fall to the bottom, wait a moment, reel in the slack and set the hook. You can do this with most straight tail and stick baits but not with a senko(economic liability ). This method can and will bring a few big fish to the side of the boat.

Have any of you tried wacky-rigging in moving water?  Is it the same technique there?

There are several ways you can fish a wacky rig.  Rig a senko type worm wieghtless and just let it shimmy down by itself.  I also like to shake the rod tip alot giving the worm a quivering action and keeping the worm in the same place.  You can also put a nail in the top of the worm and shake the rod tip.  I agree with LBH, anglers tend to overwork a wacky rig.  Hope this will help a little bit.

I like to also rig it carolina style with 2.5 to 3 foot leader.   With the longer leader this allows the worm to fall on slack line in deeper water.  Seems to be effective in deeper water.  

Scott

DON'T rule out weighted guys.

Although I throw weightless most of the time if I have the right conditions I'll add weight.

If I have a fairly open bottom with little vegetation I'll take a trick worm and rig it wacky with one twist.

I'll insert a nail in one end. Having one side weighted will make the worm stand up when you pull it.

You will still get that wacky quiver but it will be vertical as it works across the bottom.

JMHO

I have also used a wacky rig under a small bobber about 18" down over hydrilla.  This actually worked well, but I didn't like using the bobber.  The chop on the water will keep it dancing.