I have 2 POG 110 (1987 model) and love them. I am interested in getting 2 POG mid (1987 model). The RacquetResearch site ranks POG OS as #1 (out of 167 tested) overall based on elbow, wrist, shoulder safety. However, POG mid is #75 out of 167. Anyone have any idea why the mid is so poorly rated compared to the OS? Anyone have any experience with both POG OS and mid?