I'm rebuilding my Sram Grip**** 400, I can't get the shifter to twist properly. I can rotate the shifter clockwise fine, but I can't seem to get it to shift counter-clock wise. I can only install the spring in one direction so I'm not sure what I'm doing wrong I'm replacing my cable and housing, and the shifter worked fine before I disassembled it. I realize there is on grease, I wanted the pictures to look good and adding grease didn't help. Any help would be appreciated.