ead to senior unchanged since our last review. $25 Par: GS 6.3% Perp-21, Fixed for Life (GS.N) provides a current yield of 5.8% and a YTC of 4.17%, TE YTC of 5.75%. GS 5.95% Perp-17, Fixed for Life (GS.I) provides a YTC of 2.9% (TE YTC of 4.0%) and a current yield of 5.78%. If called, GS.I will provid