Sounds like you ARE doing everything "right" which means you just need to stick to it. I use a spring type round head 3/16 to 1/4 oz with either a sprayed grass flirt or junebug roboworm. this technique is all about fishing patiently. works best with bright sun and low wind (fish are tight to structure then) and is even better if fishing around submerged wood. i would tell you that frequently "less is better" - get it on the bottom and drag or "shake" it SLOWLY. it is my confidence bait - mainly because it can find and boat just about any size of bass. i prefer flourocarbon but would say it is not mandatory (it sinks faster, is less visible but more importantly in deep water, it is MUCH more sensitive). a very sensitive rod does help esp when you get to >20ft depth. BTW i notice you posting a lot about cedar creek. i have NOT done well with the usual finesse worms noted above at cedar creek while using shakey rig. i have found the gambler 5in paddle tail to be better - displaces more water and appeals to largemouth better i believe. at cedar creek i favor staying with a traditional 7-10in ribbon tail worm on a texas rig. i think the largemouths there respond better to something that displaces more water than the finesse shakey. just my 2 cents -> good luck! let me know if i can help any other way.