The biggest problem with any lake now is the fact they are overfished so the fish get adapted especially when seeing the same thing each and everyday. A jig and a spinnerbait are my 2 favorites year round and I can tell you from alot of trial and error the solution for me.
Down size. Small baits catch more fish and the big fish will and do bite small baits as well. Large jigs also have faster fall rates which can cost you fish if their not in attack mode. I hate to tell you to buy more lures but I will tell you what I use and it's a cheap and simple set up. Natural colors unless the water is just plain muddy go to black and blue. Also if you are using braid try using a mono or fluro leader and there is a video showing an easy way to add leaders which I use every day and yet to have one slip. The smaller jig sinks slower, looks more natural to them and the size is more life like, it also makes much less of a commotion when entering the water there fore less spooking of the fish. So here is what I use and my lake is only 3500 acres with tournies several times a week and it works for me when peopel are zeroing I am usually still catching fish. The key to a jig is drag slow and hop drag and hop. SLOW
p.s. I always use a craw scent and recharge about every 30 casts or so.
http://www.cabelas.com/catalog/product.jsp?productId=1201062&productVariantId=127549&WT.srch=1&WT.tsrc=PPC&WT.mc_id=google|120345_Fishing+Jigs+%26+Rigs_Bass+Jigs|USA&rid=20&WT.z_mc_id1=43700001030785297&gclid=CI3Luqum7boCFRFo7AodbAwAPg&gclsrc=aw.ds
http://www.***.com/Strike_King_Baby_Rage_Craw_3/descpage-SKRBC.html
( notice baby rage )
start at 3 min mark to see how to tie on a leader the same applies to braid
start a 3 min mark works for braid as well
Good Luck !!