Thanks for the opposing view point!I have no desire to convince you to change your mind. If it works for you and your fish stick with it. Will point out a couple things. Flakes can cause fish to gulp air and depending on the fish this can be an issue. Flakes degrade and dissolve into the water column much more quickly where pellets usually keep their form longer (giving additional time to be eaten). Flakes are also a tough feeding choice for larger fish. Takes a ton of feeding and time for a fish to get what he needs from hundreds of flakes floating around... pellets are larger and more nutritionally dense and much more effective at feeding large fish without excessively feeding. Flakes have a very short shelf life once opened compared to pellets.
As you mentioned pellets are also generally speaking more nutritious than flakes. For me that is a big one... that is the whole point of feeding afterall.
As for the issues you have with pellets sinking to the bottom and degrading it is not really an issue I have. If you have diverse fish that includes bottom feeders and an appropriate CUC it should not be an issue. I would much rather my excess food be eaten by my goby, nassarius snails, etc than to get caught in my filter sock. Unless you are changing your sock soon after feeding that flake food is going to break down very quickly and negating your "pro" of them going into the filter.
when feeding mainly pellets how do you ensure more timid eaters/those with smaller mouths get there share?