This is the sedge pattern I use on BC lakes. Based on Mitch's segde pattern.
Two colours are used for the body, shown here is the bright green which I use for a few days after the hatch, while the "travellers" are moving around the surface and laying eggs.
During the hatch, I use the same pattern with a gold/olive dubbing blend and tie the dubbing very loose for a bigger profile and more transparency.
Pete AKA Frenchcreek from Calgary