- Updated to the optimized version. This allows us to

- Updated to the optimized version.  This allows us to
  a) add more tests for consistency
  b) actually believe the result of the timings because they were
     irreproducible before (due to different branches taken by different
     representations, which happens because eariler tests account for
     low timings by iterating an unknown number of times thus producing
     different hashvalues for symbols in later calculations.)