1. The statement that "EB1 cases get priority with the USCIS" is completely false. I know first-hand. To the contrary, they usually take longer time because it needs to be reviewed by a qualified/experienced examiner and they don't come in plenty. You don't hire a guy and give him/her an EB1 case to adjudicate.
2. Also, sending a fax doesn't mean that an action will be taken. Again, I know first-hand. I have sent countless faxes since Feb 2004. My case is still pending.
Any deviations from (1) and (2) is purely random. It is just that the individual is lucky.
sg_rg2
ND 09/01
Fp2 05/04
waiting for 1060+ days