In my last two outings I have caught four year classes of trout. The two above are likely 2nd and 3rd year. The time before, I caught the largest trout ever in this lake and likely a 4 year old. They start dying at 5 years old. They are stocked as one year olds and sometimes you have a hard time getting those off your flies.
The magic this Spring has been a P-Quad. I noticed that they were spitting out minnows when caught. The P-Quad works for that as well as scuds and even boatman if they have a silvery back which mine do.