Hi me2,
I keep several knives less sharp for various reasons, which just means theyre not sharpening with higher grits, polished bevels, or acute angles like my other knives. My hard contact knives (med-heavy cleaver and boning knife) are only used for breaking through, cutting around bones and joints, etc., so I dont go beyond utilitarian b/c the extra effort is lost after a few strokes. I actually sharpen the cleaver with an electric sharpener. The electric does remove a lot metal, but I figure its removing the edge that has already been compromised from hacking through the bones, and theres more than enough knife left to last me a lifetime. I also have a few of my older knives reserved for guests (and my sister in law) who like to help out in the kitchen, but are uncomfortable & inept using a sharp knife. Ill sharpen or dull them slightly against a wooden chopstick, so they barely slice paper. They can help and I dont have to worry about them hurting themselves.
I know what you mean by being able to feel the knife cutting. I tend to use the tip of chefs knife for small quantities of small items (garlic, shallots, mushrooms, etc.) meant for a paring or petty knife, but can only do so with knives that are sensitive enough for me to feel the tip. If knife feels dead, has a blunted tip or is too long, I have to switch to smaller knife. The reduced cutting resistance with knives that can fall through foods on their own was something that I struggled with initially. I had to unlearn those things that I did to make lesser knives work and learn to do nothing more with better knives than aim, steer, and prevent them from coming down too hard against the cutting board.