CathInfo.com

https://www.seldelaterre.fr/articles/sdt21/docuмents-sur-l'institut-du-christ-roi
AI Translation: Not proofread, too busy today.

Below we give four docuмents to enlighten Catholics on the true nature of the Institute of Christ the King headed by Father Wach and which has a seminary in Gricigliano, near Florence, Italy.
The first docuмent consists of the statements of Father Julien Bacon, superior of the Priestly Opus whose links are close with the Institute of Christ the King. The extracts we give are taken from the editorial of  262 of January-February 1993.
The second docuмent consists of the constitutions of the Institute, the continuing references to the Second Vatican Council and the post-conciliar docuмents. These constitutions are semi-secret and are not even known in their entirety by the seminarians. Excerpts are sometimes published, but references to the Second Vatican Council and post-conciliar docuмents are carefully erased.
The third docuмent shows the founder of the Institute concelebrating with Pope John Paul II.
The fourth docuмent is a warning issued by the Fraternité-Saint-Pie X newsletter in Germany.

Le Sel de la Terre.

...
Fourth docuмent

Taking a position on
the Institute of Christ the Sovereign King Priest * 

During Advent the Institute of the Sovereign Christ the Sovereign King Priest (which has its headquarters in Gricigliano near Florence) sent us a letter of publicity and request for financial relief from its German subsidiary in Gmain, Bavaria. It is signed by Dr. Rudolf Michael Schmitz. Since we know this Institute relatively well, we would like to draw the attention of our faithful to the following facts:
1) The Institute boasts of its fidelity to the traditional Holy Mass; however the superior concelebrated not long ago with the Pope, obviously according to the Novus Ordo  Missae [52]. (...) But other members also celebrate from time to time the new liturgy.
2) The Institute wants “in perfect union with the Church and the Pope to transmit to the new generation the traditional values of the Church and the beauties of faith.” Is there not a certain duplicity in this statement? For either “Church and Pope” is understood to mean the Church in its healthy part and the Pope as vicar of Jesus Christ and successors of St. Peter; but then why distance itself from the Society of St. Pius X as can be read between the lines. Or by this we mean the conciliar Church with her mortal disease and the popes of the council favoring heresy, and then it is the quadrature of the circle, that is, something impossible.
Because :
“Or we condemn the current ecuмenism that leads to religious indifference and take an open stand against the meeting of Assisi and the meeting planned in the year 2 000 in Sinai with Muslims, Jews and all Christian denominations; or we do not say anything about it, we minimize religious relativism or even approve of it; but in this case we do not transmit “the traditional values of the Church”
“Or we commit ourselves to a Christian social order; therefore we must refuse the decree on the religious freedom of Vatican II; or we accept it, and then we must engage with the present men of the Church (who are precisely not the Church!) for the secularization of the Catholic states.
“Or one confesses with the old catechism that man is on earth to know God, to serve him, to love him and to be eternally with him; or else we affirm with Vatican II and all his defenders that man is the center and the end of all things on earth (Gaudium et spes, no. 12).
3) In fact Institute of the Sovereign Christ the Sovereign King Priest relies in its constitutions essentially on Vatican II, even if it extracts the least evil texts.
4) We read in the circular letter that the seminary of Gricigliano explodes under the number of seminarians; but we ignore the fact that a good part of these candidates left our community because they did not agree with our attitude to good because they were dismissed.
In a word, we regret the absence of clear affirmations of faith for the concrete of the present times. We regret the absence of the open struggle against heresy and immorality. Instead we have aesthetic shapes: the cappa magna of the visitor cardinals, surplies and aubes with long lace, the bar, the Roman hat, the finely sewn cassock. In addition, [according to the circular letter], the agenda begins at the seminary not with prayer and meditation, but with breakfast, Holy Mass is celebrated at 11 a.m. 45 – a little strange for the formation of the future ministers of the altar. In the Gospel there is no bliss for diplomats, but for those who suffer persecution through justice.
It is neither clerical jealousy nor misunderstanding in front of paths that are not identical to the same that have pushed us to write these lines, but the only concern of the faithful who would allow themselves to be deceived by beautiful words. Because we wish nothing as much as to be joined by young communities in our fight against contemporary apostasy and infidelity, where by the nature of things are created bonds of friendship as is indeed the case for twenty-five young communities. But worldly caution and compromises are bad advisors.

I have recently been searching for information on agreements between the Institute of Christ the King and Rome. It would seem to me that the
ICKSP has done a good job of covering its tracks in keeping these things under wraps. I am trying to explain to a relative why I won’t attend their Masses but it is hard to find this info.
Any info would be appreciated. Thanks

Just say: "they have accepted Vatican II on paper". Point blank. They have. They are not allowed to preach against Vatican II or the modern hierarchy from the pulpit. Their priests come out of Rome where they receive modernist brainwashing. You will get the "smells and bells" when you go to their Mass. It feels traditional but it is inlaid with modernism. Our Lord that said he will vomit the lukewarm out of His mouth.