Just tried it last week and did not get squat bead fishing what worked for you Ed. I have never had any success with lake trout fishing Kenai LK. I am all ears heading out tomorrow for Kenai LK for my Sheep Permit again Biologist said he did not see a legal Ram this year in DS 156 survey.
Flesh flies, Wooly Buggers, soaking eggs, "Greased Liner" fly, Small Mepps spinner with foxtail (Size 0 with silver blade IIRC), and sculpin imitations all worked for me there.
I hooked a lake trout at that spot one New Years Day that stripped every bit of line off of my fly rod and well into the backing before the line snapped. I saw the fish once as it was hanging around the edge of the fresh water coming out of Quartz Creek. I was using a flesh fly tied on a #6 hook, 10lb leader, and dead drifting the fly with the current.
I've caught some nice silvers there this time of year on Purple Zonkers and flesh colored Wooly Buggers. Did OK with Rainbows there dead drifting "Greased Liners" and single egg imitations, too.
I hope you get your sheep. I LOVE Dall's Sheep!
Ed