We just had a couple of questions on palatal height (high arch and torus palatinus) affecting /r/ production. In my experience, there is not specific manner or place of articulation for /r/, so my emphasis has been on attaining a successful production of /r/ in some context. This is what The Entire World of R Advanced Screening and Screening Kit attempt to assist with. Obviously abnormalities in the oral cavity may distort sound production. Has anyone reading this had exerience with this issue? What techniques did you use to be successful?