I do use about 30% expo on mine, but it got me in big trouble when I used it on the rudder.
Was taking off in a crosswind and was pushing right rudder to keep it straight, when I ran out of expo and it veered sharply to the right. All that lost travel comes back in the last bit of stick travel, better be ready when it happens. I reduced the expo on the rudder and the travel.
Also added a gyro just for insurance.

No problems since.