I have read somewhere that once PD is current, filling date doesn't matter. I will advice to confirm with a lawyer and not miss out on this cos it won't stay for long.
The answer to your question is within Instructions for Form I-485 (PDF, 485 KB)page 20:
Other relative of a U.S. citizen or relative of a lawful permanent resident under the family-based preference categories (Form I-130)
Family-based preference categories include: unmarried sons and daughters (21 years of age and older) of U.S. citizens; spouses, unmarried children (under 21 years of age) and unmarried sons and daughters (21 years of age and older) of lawful permanent residents; married sons and daughters of U.S. citizens; and brothers and sisters of U.S. citizens (if the U.S. citizen is 21 years of age or older).
If a visa is immediately available, applicants filing under a family-based preference immigrant category do not have to wait until Form I-130 is approved to file Form I-485. If a visa is immediately available, you may file your Form I-485 together with your Form I-130, while Form I-130 is pending, or after your Form I-130 is approved. Otherwise, you may file your Form I-485 only after your Form I-130 is approved and a visa is immediately available. See the When Should I File Form I-485 section for more information.
Typically USCIS is using Date of filing chart for allowing you to file form i485 to adjust your status in US. But .. the instructions of form i485 clearly state that when a Visa is immediately available, you can file i485. And as defined by USCIS policy manual, a Visa is immediately available when Final Action Dates chart is current.
So my understanding is that when Final Action Dates chart is current, it renders Dates of filing chart useless. Therefore you can file i130 and i485 concurrently.
