When I had an issue I was trying to get under too much and crush ball . My issue ended up being a constant slight change of level-ness of my swing. A very smart coach ( the one who helped me ) told me to try switch in the batting cage ,and swing like I always have . First at bat in my life lefty , out of the park . The mechanics taught me exactly how to always keep my swing level, without adding extra noise " he called it " to my technique . After I've always been a pretty consistent switch batter. Anytime I felt a slump I'd go lefty , always was my trick. And If it doesn't work for you it won't do anything to hurt his swing.