For all those who posted about the original rapalas, I'm assuming all those were the silver/blk back models, maybe a red gill, not sure. To be honest I dont know if there were many different colors but it has to do with colors (especially red) fading to shades of grey to fish, especially at night. Consider this: There are infinite shades of grey, from white as the strongest point of grey to black as the weakest shade of grey. Just how many shades does a bass distinguish? And where would our fav color be in the grey sprectrum Think about what color of your favorite lure had to do with this.