I actually know quite a bit about this sort of thing....
If you want to fish the lily pads in that place successfully,...you need to "gear up"! That means using a stout rod (7-8ft Heavy action...) along with at least 20# line,....personally I like 20# fluorocarbon for this,..however a lot of others go with 50-65# braid. For a bait, use a heavily weighted (1 ounce minimum..) soft plastic such as a large tube or straight (senko-style) worm,...something that has a thin profile without a lot of arms or things sticking out,.. so it will go through the lily pads easily in both directions without hanging up!
Just make the color green-pumpkin,...it will be all you need about 95% of the time!
This type of fishing is mainly vertical,...you drop the bait down through the pads,..twitch it once or twice and if you don't get bit quickly,..you pull it up and out and then just drop it in the next spot. The whole trick is to drop it into as many spots as possible, so just make short/comfortable tosses. If you are quiet, all you really have to do is let the bait swing out like a pendulum from the rod-tip,...that'll be as far as it needs to go! If you make a couple of hundred drops in this fashion,..you will generally hit enough bass on the head to make it a successful day! I haven't fished that place in a couple of years,..however I'm certain that there are still a ton of 3lb-plus fish in there and all of them hide under those pads!!
Now when you do get bit, do not fool around,...set the hook
HARD, with a big upward sweep of the rod! What you are trying to do is set the hook and drag the fish up to the surface all in one motion,..before it realizes what has happened!! This is really why you absolutely need the beefy rod & line! Once it is on the surface you can easily drag it over the top of the pads,...but if you fool around and let a 4-6 lb bass wind you around a few of those lily pads,..you will lose the fish just about every time!
Good luck,..I'm looking forward to hearing about the bigguns that you'll catch!!