I have used vexers quite a bit. I have had the most success with natural colors like walleye and sucker on most waters(stained and clear). I have also heard of someone catching a bunch on the bluegill show color. I think it depends more on time of year and weather. Fall and spring more natural colors. Summer you can experiment with orange/dark on overcast days and bright/chartreuse on clear.

I like the "sound" more than anything. Listen to the underwater youtube video on drifter website.

hope this helps
lil man tait
tait sennett