I was up at east canyon last friday(aweek ago today) and between me, my son, and friend we boated around 60 rainbows. All were pan size with 2 about 15 inches or so. We caught them on power bait, crank baits, tube jigs, and the best was trolling with a black wooley bugger with only 2 bouble b split shots on the line. Black wooley bugger with a tail and sparkle dubbed through it worked the best. Thought about going up today but too cold for me to go and catch little buggers. If you have small kids or someone who hasn't caught alot of fish, I say get up there soon while bites on, because its a great time and place to get alot of action for some young ones.
One word of advice. watch out for the idiot that likes to troll 50 yards behind your boat. You would think when the boat in front of you hooks a fish and it jumps 10 feet in front of your bow you would know that you are way too close. I'm not one for conflicts so I we just moved to the side and let them go by but, not without giving them them good old stink eye