Well, call me a nitpicketty liturgist (and plenty of people do) but the Lectionary does include the 'Praise to you O Christ...' before and after 'Christ was humbler yet...' on both Passion Sunday (Palm Sunday) and Good Friday.
On the other hand, page 339 of vol 1 of the Lectionary says:
'During Lent, both before and after the Gospel Acclamation, one or other of the following phrases may be used, or another similar phrase:
Praise to you, O Christ, King of eternal glory!
Praise and honour to you, Lord Jesus!
Glory and praise to you, O Christ!
Glory to you, O Christ, you are the Word of God'
Then it gives some 'verses' (or whatever the meat (or cheese if you've gone veggie for Lent) in the sandwich is called) to use on the weekdays of Lent, in the manner of Common Psalms.
Having found and said all that, I am not so nitpicketty as to have ever followed it! In my previous parish we used the 'Christ was humbler yet...' from Music for the Mass 1 or 2 (don't have it here to check) with the JS Bach tune, which everyone sang with gusto on both Palm Sun and Good Fri. It launched the two Passion Gospels with an impressive amount of gravitas, I thought, and because it was 'big', the readers moved into the silence afterwards in a way that made us listen. Or so it seems to me now, remembering.
Also a nice simple bit of four-part for those unused to it!