What I had not heard/considered before was Pius XII's reform of the curia/cardinals. This comes after Pius X did the opposite(he streamlined the curia). So, with Pius XII you get a new garbage liturgy(so much so that John XXIII in 1960 used the pre 1960 holy week), a NWO inter"national" organization/structure for Rome, and a new Vulgate(bea psalter already taking effect, with the nova Vulgata appearing in the V2 newchurch soon thereafter). I have doubted my 1951 date from time to time, but honestly, the evidence is there.
Canon 7 on the sacrifice of the mass 1562 - "If anyone says that the ceremonies, vestments, and outward signs which the Catholic Church uses in the celebration of masses, are incentives to impiety rather than stimulants to piety, let him be anathama".
The way that I see it, either all pre 58 trads are anathama, or Pius XII is anathama. Take your pick.