I bought the Watermelon Red 4" smooth tube and with a little modification it was truly amazing. I took a old jar filled it with salt water and a gel fish attractant. Then I took the smooth tube and put a small piece of Styrofoam inside of it. The size of Styrofoam depends on how fast you want it to float( I like mine to float up slowly. I fished it Carolina style off of a main point in my local reservoir. The fish could not help themselves. A couple of hard twitches and my bait would go down and after a slight pause it would wobble up slowly. Bam Bam Bam bite after bite fish after fish. LOVE IT, AMAZING TUBE ACTION try if for yourself. NEW STYLE OF THE RIG!!! FINESSE AT IT's FINEST!!!