I agree with Ken, IFthe plane is set up for reasonable controls mechanically. The expo softens the wild stick movements that new pilots makes, speaking from my own experience. It doesn't fix in the stick in the corner movement though as I found out. It just makes movements around the center softer. I use them. Each plane has a dual rate and expo set up to keep me happy. I still find my best landings are the ones that I kind of Freeze on the controls once I have my glide path set. Nothing more that a very slight nudge on any control Those are sweeter. When I revert to the sticks in the corner mode though. things go ugly. Expo helps but doesn't cure the newbie stick control. That is why Ken and others will suggest none. It forces a sharper learning curve on proper stick control.

Don.