I did a search and found lots of references to them and saw Quack taking much grief for his use of them, but not one mention about why they are desirable. So, with that said, what makes them worth having? Do they feel better? Do they work better? Do they make finger placement more or less critical? Inquiring minds want to know, and since I'm getting ready to "pull the trigger" so to speak on a new trigger for my pistol, I would like some real input. I just don't want to pass up a potential improvement without researching it just a little.