One week up there we didn't catch any bows, cutts, or dollies on anything except those. Heck, I thought everyone used them up there, maybe that's why they worked!Purple ESLs even for the non salmon stuff?
I love purple stuff! I've had surprising success purple nymphs for grayling (and trout) and just throwing some purple dubbing onto my streamers. In fact, my largest trout on the parks streams was caught using a purple and gray mini complex twist bugger. Single hook is the name of the game but I use mainly articulated leeches. I like using shanks and then attaching a hook using 30-50 pound braid depending on my target species. I'll try to upload some pictures later but a lot of what I use is based on a lot of patterns at Alaska Fly Fishing Goods. Take a look at some of their simple flesh patterns. I know I've had luck just wrapping white and a light pink marabou around a hook. Rabbit, in similar colors spun on a dubbing loop, can also make a really effective flesh pattern.
I'm still iced up with a foot of snow in some places although it's disappearing fast. The valley and Anchorage have enjoyed some nice weather in the 50s and 60's over the past week or two. There's some moving water in places but it's understandable high. I'm actually moving to Wasilla end of May so I'm hopeful flows are a little more manageable then. I tied up a bunch of stoneflies this winter and I'm anxious to see if they grayling like them.