Water quality is what I base my color choices on. Good quality I go with natural colors, Browns whites ect. Reds seem to work anywhere definitely my favorite this year, powerbait mayfly. Not so good water quality I’ll try more colors that pop like pinks and bright green. Cloudy water I also have found luck using a different colored tungsten than the soft plastic. Sometimes the contrast gets em to bite. So red, my answers red. Lol.