>>625114
Meaning a group of them sent a Bishop to a conference attended by, among others, an Orthodox Metropolitan and a group of both Eastern and Western Rite Orthodox.
>>625119
There are very few real post-schism Western practices that differ widely from the pre-schism ones, excepting things done very recently under Vatican II or some of the changes to Fasting which relaxed things.
I've checked and our WR Fasting rules are very similar to what the Latins did 100 years ago, which of course was very similar to what the Latins did 1000 years ago.
The various Western Liturgies are essentially the same as was done in pre-schism times again with the exception for recent i.e. Vatican II-era changes, with only the necessary changes made to comply with Orthodox theology, and of course, done in the vernacular.
For example:
Antioch uses the Liturgy of Saint Gregory, whose basis is the Tridentine Mass as celebrated by Society of Clerks Secular of St. Basil who previously were the American Orthodox Catholic Church formed in 1927 by breaking away from the OCA (Russian Metropolia) and had disputes with ROCOR; the Liturgy was converted in the early 60s. As you probably know, "Tridentine" is from Council of Trent in 1570; occasionally called the "Gregorian Rite"; this was really a standardization in partial response to Protestant usages. It developed definitely between the 2nd and 6th centuries (100s and 500s) with Leo I (early 5th) and Gregory I (late 6th) shaping it. Note that probably in the 3rd century (200s) the Mass had moved to Latin in Rome. So it is really quite ancient overall.
ROCOR uses the Liturgy of St. Tikhon of Moscow - from the Anglican 1892 and 1928 services in the Book of Common Prayer, converted in the 70s from the Sarum Use of the Latin Rite - a mix of Gallican, Roman, Celtic, an British customs. Standardized in the 13th century (1200s). This was the source for the first Book of Common Prayer in 1549 and was used by Recusant Catholics and the name "Sarum" refers to the ancient use of the Cathedral of Salisbury prior to the Great Schism. We also make extensive use of the hymnal and various hymns are recent e.g. only a hundred or so years old. Our Christ Mass service used many of the Carols that I learned as a kid in America.
Where recent practices are not contrary to Orthodoxy, they are preserved. Where they are contrary to Orthodoxy, they are changed.
Not all of the Saints post-schism are honored. It is kind of a case-by-case and Patriarchate by Patriarchate basis. The Patriarchate of Moscow has been VERY proactive in bringing in honor to Saints of the West, St. Gregory the Great Orthodox Church in Washington DC recently published a version of the RCC Martyrology for use by the Orthodox.