TJ,
I'm a big fan of Skretting now. Still irked at AM. I've used both the trout and steelhead. Honestly, I'm a little bit odd. I want a 'varied' diet for my fish - always have. Even when my BG were blowing up I used a varied diet. I always supplemented AM even when it was my foundation. So here's what I do with my supplemental (admittedly primary) feed.
Rotate. Use different foods. Honestly, it takes the fish some getting used to but it helps me because I can't rely on anyone having food my fish like, so I teach them to like everything (except the new AM which they eat like I ate broccoli as a kid).
Right now, I use Skretting trout and Optimal. I did the Steelhead in late fall, and rotate it occasionally. I like to do higher fat going into winter as that seems like a thing that animals do in the wild...