As recent as 5 years ago it seems like most Shad flies were bigger and more towards, chartreuse, green, pink... etc... and now the flies fished with greater success are smaller with a bead head with an emphasis on red along the lines of the Mahalo or Albino Wino used at Pyramid Lake (Credit/Tip of the hat to Jeff C.!) Why the change? Shad diets or "just" innovation by Jeff c. or ?