C'mon RG I have stated many times I was a former member of the US night figher's association before it was broken up. I know some of the ETO vets of the 422nd and 425th nfs personally and have interviewed them at length my files on the ETO alone are some 4 inches thick. Will point out simply the ETO crews were trained in the useage of night binocs and yes the B's were used. have also in the past gave nightly reports with insertion of P-61 a/c numerations and the variant. Plain and simple there were not enough P-61's to go around, the P-61 was exhausted until service crews had to look for other means to replace needed parts struck by action/weather, crashes, etc....