I commented on this problem early in the year. Well after flying the plane all summer the problem still persists, it stalls on landing and any stopping of forward motion of the plane. I have 2 Da 50 engines the one I picked up at Toledo this year is fine. The problem engine has never quit in the air. I'am getting tired not being able to taxi back to the pits and so are my fellow fliers tired of seeing me out on the field. I have had no answers from DA when I phone! PS believe me it is not the needle settings.