Well, I value EFB2 more than fsaerodata so, after years of using both, I have reverted to Herve's approach. P3D actually loads faster now that I've discontinued fsaerodata. However, I agree with Marc that the fsaerodata was a bit more complete. That said, since 95% of my flightsim time is spent in top-end airliner addons that use Navigraph, the adjustment won't be as bad as I had hoped. I have Herve's 2006 cycle installed and EFB2 is happy now.
I've been simming since the late 1980s, so I have learned that this is the way things go sometimes. I appreciate both developers, but I am forced to choose: I chose Aivlasoft.
Take care.