I'll throw my two cents in. I believe that most folks fish with terminal tackle that is too big. Even stocker rainbows can get picky. The smaller baits seem to keep them interested longer. Maybe that really is based upon being able to slow down the presentation with the smaller baits or just have a slower drop.
When we fished Bennetts I would tell my wife and kids that if a fish is following your bait as it was dropping set the hook when its gills would flare.