I would definitely say the Cassock and Surplice, but I would also do whatever the Pastor tells me to wear.
The Cassock and Surplice is Choir Dress - for people assisting at the altar. It is also traditional and a big Vocations Promoter. The Alb may be the cloth of all the Christian Baptised, but the Alb and Cincture (in terms of the Liturgy) should only be worn by those that are serving a Liturgical Function
and are ordained/instituted TO that liturgical function.
When the GIRM talks about Lectors and Acolytes, he is not referring to laypeople as such, but to those who are instituted as Lectors and Acolytes and are usually preparing for ordained ministry.
In the Old From of the Mass, the Alb was only worn by the Celebrant, Deacon and Subdeacon. For other Ministers, the only option was the Cassock and Surplice.
Also, Cincture should not be worn by those that have not taken a vow of celibacy. The Cincture is the symbol of Chastity. This is actually the origin of the misused term; “Chastity Belt”. All Deacons, Priests, Lectors, Acolytes etc. are expected to remain celibate, or be expelled from practicing their liturgical ministry. One should bear this in mind the next time they fasten that cincture.
However, if the Pastor feels strongly about such and such (whether they are right are wrong) surely, criticise and tell them why you believe such and such is wrong, but unless he is asking you to sin or perform Liturgical Abuse,
one should submit.
God be with you,
Deus, Salus Nostra
