The Metolius is already showing some signs of spring hatches with a few of the yellow cinygmula mayflies hatching mid-day, and of course march hatches of Blue Wing Olives is pretty consistent sometime between 12:30 and 3.
Fish have really been eating purple comparaduns, sparkle duns and film critics on 6x or 7x tippet.
Certainly add some #14-16 yellow sparkle duns and knock down downs to your collection from now until May for cinygmula.
Midges (damn small black midges #22-24) are important. Fish have been eating adults in some of the eddies.
Plenty of caddis, not like mega adult action, but consistent pupa fishing and those include Orange #8-12, Amber #12-14, Grey #14-16 and I always recommend prospecting a Stimulator or larger Orange Foam Elk Hair Caddis.
Stonefly nymphs are a staple 365 on the Met.
Egg Patterns have been catching a lot of fish along with Walts Worms, Blue, Olive and Brown Perdigons, Zebra’s and 2 Bit Hookers.
Bull Trout are chasing streamers on the strip and with that you probably want a sink tip line for that. Tumbling and swinging streamers is always a good way to get a Bull’s attention. Depending on the fly and how it is weighted you can do some of that with an indicator rig, or a floating line or a sink tip.