Excellent point. Not knowing these precedents existed, I had chosen to stray from the mode 6 Easter inv. melody because I find it a bit tiring to have the same ps94 tone every day in Eastertide even on feasts. But since there is precedent, I will go with the precedent.

Following precedent, reused the I/ for Apostles in Eastertide, replacing "Regem Apostolorum Dominum" with "Christum Regem crucifixum", following the 1930 Nocturnale of St. Peters basilica

Re- (regem) is not a salicus, but a neumatic break (vi-pe), as it appears in the I/ Surrexit