Greg,

Aggressive in what sense? The aggressive trait I want is the aggressiveness to take lures/flies, not pellets.

A LMB trained on pellets is likely to be more aggressive at taking pellets than most other fish, but I'm not interested in fishing with pellets for LMB....HSB are a far better choice in that regard. They grow faster, are better tasting, better fighting, never overpopulate, etc.

There is no doubt in my mind that LMB on feeders are less aggressive at taking lures/flies than those that are not provided with feeders, other things being equal.

With all due respect, I know of no creature in nature that feeds more aggressively when full (or provided handouts) than those that have to earn every meal...applies to all creatures that I have encountered.

Show me some data that says I'm wrong...that shows LMB hit artificial lures/flies better if feed pellets than otherwise. My experience overwhelmingly says otherwise.