I think it depends on the fish, so I let them dictate what I throw. For my muddy water ponds that I fish I catch most of my worm fish on a watermelon/black fleck senko. But there's been other days they go for red shad, white, etc. In general, for me, if I am fishing muddy waters I tend to throw darker color baits. A rule I started going by (not sure where I heard it first) is: A - first and foremost, if you're not getting bit, change baits. And B - if you're getting attention from the fish but no solid bites, change color till you find one that does get solid bites. This is all under the assumption that you're fishing somewhere there are fish. As far as smell/attractant, I can't say. That's one thing I haven't started to dabble in yet so someone else might be able to give you an answer on that.