My newbie opinion.  A c-rig has the advantage of allowing a heavier weight to get down deeper quicker while still allowing the bait to float and act free unhindered by a nearby weight.  
 

and the other advantage is it being a minor mess to cast.

I use a finesse version with six pound mono, a mojo sliding sinker with a double knotted 3/32" rubber band as a sinker stop with an 18" to 30" leader length.

 

My standard c-rig version uses a 15 lbs mono main line with a 1/2 oz to 3/4 oz egg sinker, and a 36" to 48" leader of six or eight pound mono leader.

 

Keep in mind that I fish the same lake more than 95% of the time due to Quagga constraints on local waters. Lots of different soft plastics will work, but my ride-or-die deserted-island choice would easily be a 4" Keitech Swing Impact in Electric Shad.

 

Roboworm stopped making my previous go-to decades ago; discontinued the bait itself, and the color. I had gone through as many as four bags of them in a day and kept that mostly to myself. The Keitech is the closest competitor for me and pretty good in it's own right. I have a lot of confidence in it. I keep searching for alternatives, but for me, everything else is just everything else.

Use it sometimes , But I like the Lindy walking sinker. Way less hang ups 

1 hour ago, bowhunter63 said:

Use it sometimes , But I like the Lindy walking sinker. Way less hang ups 

I just searched lindy walking sinker and lindy rig. So basically it's a carolina rig, but with a dangly sinker. Hmmm, interesting. That gets hung up less? Thanks. I'll have to give that a try sometime.

Haven’t used the traditional C-rig in decades, too many knots!

I use what I call the “Slip Shot” rig or finesse C-rig.

Cylinder “mojo” sinker, Carolina Stopper or pegged glass bead and 1 knot at the hook.

Spinning the weight is 1/8 oz or 3/16oz depending on wind and depth.

5 lb Maxima UG copoly line, #5133 2/0 hook and variety of finesse worms or reapers. The weight is usually about 36” up from the hook. The mono line keeps the line from dragging on the bottom.

Bait casting the weight is 3/8 to 1/2 oz, hook is 4107 size 3/0 and 6” to 7” worms, Kietech Fat Impact or Hula grubs. Line 11 lb Diefer mono.

Tom

If you're a low tech fisherman like myself (I kayak fish) the C rig is a great way to mentally map the bottom of a small body of water because it's heavy and stays on the bottom easily.

 

Sometimes in the summer, when it's hard to get any bites, I'll rig up a lightweight C rig with a small lizard or 4" worm. You can do the same with a split shot. This is really fishing for smaller bass, but that's better than no bass, still with a chance of catching bigger ones.

I use two different retrieves with one. The most productive is sweeping the rod to the side and reeling the slack before repeating. The other is with a longer leader and it's a modified stroking one, but rather than jerking the rod tip up, I sweep it from pointing at the water to overhead. The start of the sweep lifts the bait off the bottom and because of the longer leader, when the weight falls, the bait follows much slower. Gut hooking was a bit of a problem at first, but once I figured out a good cadence I all but eliminated the problelm.