I used the one Jellyhead mentioned during the F4 event. Fishing was slow but the K-13 with the glow stripe down the back and red flashing light got 2 out of the 4 fish caught, the 3rd fish was caught with the black with red light. During the two days we fished, we had 4 poles in the water most of the time and 2 where lighted K-13's and 2 where other k-fishies. 3 for the light and 1 for non-lighted. I could not get the K-13 to run true with a wrap on it, I tried every different way. If anyone has a good way please let me know.