I've checked for system updates over and over...and no OTA notification on my phone. Currently, I am running the leaked 2.2 version. Is this preventing me from pulling the update or from receiving a notification.
If you're already essentially running the update then the updating processor probably won't perceive a need. The real problem that you could face according Verizon is if updates come out that are newer than the update released on the forum you might not receive them. Your choice is to see if you can back it off to the original version that you had and then try updating again. I have you tried to compare version numbers between the leaked version and Verizon's?