I googled the CIS website for processing date and found the following link, i.e., https://egov.immigration.gov/cris/jsps/ptimes.jsp .
Q#1. Shall I look up the Nebraska or Vermont CIS Center for I-140 and I-485 processing? I guess Nebraska? (I'm located in PA.)
Q#2. How fast has the processing date moved forward in the past 6 months for EB2 (professionals with advanced degree)?
Q#3. When the processing date becomes the filing date of an application, how long does it normally take for I-140 to be approved? (The mid-80% range?)
Q#4. Following Q#3, how about I-485? (The mid-80% range?)
Thanks a zillioon in advance for your response! Input from any other pros will be also appreciated!