I still think the bass is at least somewhat stunted. It and a similar sized "buddy" could have eaten some of the fish that you stocked last fall. A few may neeed to be restocked.
Is your pond water clear enough to see what type of fish are eating the bugs that you toss in the pond? Try to see what type of fish are eating at the surface. I little fishing with a small hook and slender bobber or just a plain #8 aberdeen hook with a cricket attached should allow you to sample what fish are feeding on the handouts. You should be able to catch a few bass about 5"-8" long which would be those stocked last fall.