Jigs ---- Should I Switch From 30# Suffix Braid And Go To Fluoro?

You can try it, but I seriously doubt you will se any increase in bites. I've said this many times in the past. If the bass are so smart that they can figure out that line is bad, how come they can't figure out that your jig is not real food? Why can't they tell the big hook is bad? Besides, no line is invisible.

I think the OPs water is stained enough that he should have few, if any, concerns about line visibility; however for the reasons mentioned in RoadWarrior's post I use fluoro leaders as well.

In reference to the post quoted above, I've read this many times in the past as well.  I've even considered it as valid, but now I think it is taking an interaction and looking at it too much from a human point of view.  Why?  Because we don't know what is in a bass's mind when it sees these things.  So we describe it from our own perspective, which is to say, we would know a lure is not bait so if a bass could recognize line, we think they would recognize a lure isn't real also. 

Let's look at this from a different perspective, which isn't necessarily a correct perspective either because we can't know for sure.  However, it at least explains why a bass could possibly be spooked by line and not a lure.  It has to do with what types of things in a bass's environment would put them on the defensive or make them feel threatened.  A jig looks similar to a crayfish.  It may have a hook and it may not be exact but if fits within the typical size parameters of a crayfish so maybe these things aren't as noticeable to a bass.  On the other hand, fishing line sticks out from the front of the lure and does not fit within the size parameters of any type of actual bait that a bass would eat.  It is something that could be seen as more out of place because it extends at a great length from the bait itself.  While a bass may not know what it is, it could possibly see it as something that does not fit and this could prompt a sense of unease leading to the fish pulling away.  

None of us can know for sure all the things that create a sense of danger in bass, but that is my point.  Just because a bass doesn't recognize a lure as inedible does not necessarily imply that it won't sense danger from line.  I have read the reports of a number of guides on clear water lakes, such as Table Rock, where it is typical in some areas of the lake to experience 20 - 30 feet visibility.  There isn't a guide on that lake who doesn't recommend fluorocarbon or fluoro leaders for visiblity reasons.  I don't know if a bass is spooked by line or not, but in clearer lakes, I don't take that chance very often.