No right or wrong, but guys with expo are usually smoother to watch, I guess it’s how your brain is wired and if you are a nervous ‘twitchy’ hand person, a little expo stops the tiny movements you would see in flight. BVM seemed to have designed aircraft that were soft around the center, so expo was not required for some people. The CARF Ultra Flash is very sharp around center stick, so smoother with expo. Now so many models use gyros, that acts like expo.

i set my models up with as much movement as required for every flight manoeuvre and expo to balance the feel between the two main controls on my mode 2 stick set up. Then I just have gear and a flap switch to drive during a normal flight.