I've been in Hiatus so I haven't really have any improvements in the deck. But here are my questions:

How do your matchup look against:

Canadian Thresh/blue-based Tempo decks - most of these decks run minimal lands. The reason why I added Trinisphere was to force them to play lands. While they have at least three lands, I can be comfortable with my Moxen and Sol Lands.

Combo that uses minimal lands - same principle as above but much faster. I feel Trinisphere helps there too.

Here are some of the things that I ran in my list that you didn't have and my justifications:

Trinisphere - it's justified above.

Chrome Mox - essentially Mox 5-8. I was running three but I was still unsure about the number. I figured that the card disadvantage can be fixed by the tax/rack engine.

Wasteland - I felt that it compliments Trinisphere in my list, as well as it helps get rid of utility lands and lands that produces more than one mana. Although with your list, I can see that it shouldn't be a problem.

Stoneforge Mystic - usually hard to beat (along with Batterskull) behind an active Trinisphere.

Goblin Charbelcher - late game all in insta-win. Having piloted Quinn (Scrying Sheets-based mono-white control), I've always wanted an insta-win situation (in Quinn's case: Painter Servant + Grindstone). In Parfait's case, in the late game, Belcher seems to do it. All in one card!

Other suggestions:

Solitary Confinement - with all that cards (and "free draw"), it seems good right?

Porphyry Nodes - Anti creature that deals with shroud (and Show and Telled creatures).

As for debates between slots:

Path to Exile vs. Swords to Plowshares - I find that while PtE helps Land Tax triggers, it also helps the opponent recover faster as they're getting a free land drop. I am still a firm believer of StP.

City of Traitors vs. Crystal Veins - while Crystal Veins can be sacrificed at will, City of Traitors stays on the field longer when you need to power 3-4cc bombs in the early game. Still undecided with this.

Anyways, it's good to hear from the original Parfait creator. I remember reading that article when I just got into Magic. Parfait wad actually one of my first casual decks before I played competitively. Hopefully more good things are in store for the deck.

As for the Revival, it's quite the tech.

Hope to hear more from you!