A great areas to fish a jig worm is weedlines.  Position the boat at the edge or even over the weedlines.  Cast the jig worm out and work it back to the boat.  With a quick pop of the wrist, you should be able to snap any weeds free from the bait. 

Pick a rod that has a lot of sensitivity for jig worming, but still has some backbone to snap the bait free from any weeds.  I prefer to hold the line in my finders and slowly drag the bait for short distances.  This way I can feel for a bite.  Then I reel in more slack and do over.  The key to working a jig worm is to move it extremely slow.  Working it to fast will result in no bites.  Many times, the bass will just pick up your bait and swim off.  By holding onto the line, you can feel the bite.

The 4” Black Berkley power worm seems to be the best all around color.  I recommend keeping all your bait color simple.  Have just one or two main colors that you enjoy working.  Stick with those same colors for your Senko, 10” worms, and creature baits.  It will make you much more confident in that color and when you pick up the next new bait on the market, your confidence, due to the color, will be high to begin.