The split tail is a Jacobs 3" silverfish. So you are aware, the tail lies horizontal but I have them cocked up at an angle so they can be seen.
MuskieGary....I was of that school for a long time until I started fishing late into the winter with plastics and learned that chartreuse isn't always the answer. Pro blue, pearl, firecracker, purplecracker, smoke.....I could go on for a while on colors not having chartreuse that are dangerous during the cold weather. The biggest thing is over-fishing them, over-jigging is more to the point. I gentle lift drop on a tight line with the lift being no more than 18" is key to getting hit when the water is icy cold. I always have used 50 degrees as the root for a good plastics bite to start up in the fall and the colder the water gets as the fall falls into winter, the better the bite but the presentation has got to be very subtle. On the river I can use two rods. One I dead stick the other I jig real gently.
There may be occasions when chartreuse is going to work real good but when the water is super cold the other colors seem to work beter. I think its got something to do with their metabolism being slow and they are less prone to reflex hit and will study the bait longer and closer before hitting, hence that easy going presentation.