Here's the problem I experience feeding Optimal BG.
My GSF gobble it down, preferring it to its alternative, which I will get to in a moment.
My YP only grab the Optimal. My trout splash me with their tails as they vigorously swirl through the pack of feeding sunfishes, scarfing as many Optimal pellets as their wide mouths can gather in each rise.
My grass carp move through the melee vacuuming mainly the pellets.

Then there are the spoiled brat bluegill sunfish. Nearly every one of those hundreds ONLY will swallow dried meal worms. If I only hand throw pellets, then check the stomach contents of BGs, what do I find?! Empty stomachs. I can even deprive the BG of their precious meal worms for a few days, feeding only Optimal. Still no takers; empty stomachs in harvested BG.
Toss out some crumbled meal worms and the BG feeding frenzy starts.

Amazingly, even after going through the long winter of no feeding, the BG won't take pellets in Spring.
Some fish whisperer needs to come have a talk with my BG population.

As it stands now, I just keeping fattening these finicky fishies on meal worms and bonking them on the head when fillet time comes.