Yeah bro I hate to say it, as much as I like the concept behind parfait, and the fact it did make Top 100 recently at I believe a SSG tournament (could have been Waterbury) I mean the "lock" established is far from a true lock.  You stop someone from targeting you....and?  Im not going to bash the ideas you put forward obviously, I just think they are flawed-the terms you are using are not correct, parfait cannot lock an opponent out of the game in todays meta. 
Just about any deck you encounter will be running atleast 4 Force of Will (even combo decks are playing it these days), so your idea of holding them off with Abeyance/Orims Chant is flawed right there, it takes one counter to put your whole deck out of business.  In my opinion, parfait has sorta merged with todays Fish decks, I would suggest maybe trying to create some sort of hybrid because Parfait is not too competative in todays world of magic.