This stuff is incredible in so many baitfish patterns. The electric-looking colors give your fly an epic glint of flash that draws fish in from long distances...even if used sparsely within a fly. This is like a new sauce that tastes amazing...you just want to put that stuff on everything, except it’s going in all of my flies. Bright days, cloudy days...doesn’t matter. I’ve got a great line of fish photos that I swear are because I’ve got shimmer fringe in my bugs!