Gavin and our friend Mark were at Little Lava and they were geeking on using a washing line leader with an intermediate line, and with a long leader putting a booby on the tag, and a callibaeits nymphs (like the poxyback) on the 1st dropper tag, and a diawl bach on the 2nd tag (called the “bob”). This requires a longer leader, and here is how to make it: use 3 to 4 feet of 15# Seaguar fluorocarbon and loop that to your fly line, and tie a tippet ring to the end (I prefer the oval Japanese rings for this) and then add 10 to 12 feet of 4x fluorocarbon tippet and add 2 tags with a triple surgeons knot, the 1st 4 feet up from the point fly, and the second tag spread another 4 feet up from the 1st tag. The slow sinking intermediate line pulls the poxyback and diawl bach under while the foam eyes booby fly helps suspend them and keeps them from going too deep. This is killer over weedbeds and when the fish are focused on emergers. 
When the hatch is on a purple haze, tilt wing and extended body callibaetis are wonderful duns, and try a captive dun and almost dun as your emergers. 
Beetles and the Quigley flag ant are super for after the hatch. 
Leeches and Chironomids under an indicator is always a good bet on any of our lakes.