Practically,there are various versions and editions of this service,differs one from another. For example,in the euchologion of IM Simonopetras,there are seven optional short prayers. In the edition of prof.I.Fountoulis,he only gave seven quite short prayers,but the verses of allelouiaria are extended.
In many places,when unction be served in Great Week,in the last prayer of forgiveness the priest(or archiereys)pray God to remove every anathema and penance(if possible)from the people（so they can receive the awesome Mystery on the great Thursday),maybe this is a relic of the general forgiveness for the penitents before the Pascha.
