I have been using these 3" pearl Senkos for about 3 or 4 years now, and just love them. I have had little luck with the chalk white ones, but those pearl ones just seem to do the trick.
My home lake has lots of shad, so I think that has a lot to do with it. I tried them wacky d/s today and got hit a couple of times. I often fly-line it with a size 1 or 1/0 off set, red, and it does well too. I have caught bass and cats on this rig.
Just thought I'd share an idea out of the main parade.