re-measure/calculate alpha for WRS and WRPC
the alpha parameters for WR Switch and Node are different, as far as I can tell. At 10km, they give difference of calculations at ~100ps level for positive alpha, it is few ps for negative alpha. No idea which value is better (the one for WRS or WRPC). new and better calculation would be needed then the same alpha for WRS and WRPC should be used in new release.