I’m pretty sure I just used the default settings for AHR, except I put it’s AO at 12-15 due to it seeming to need much more AO than the default slider allows.
To UE4 devs: I sincerely feel that AHR deserves to become an official part of Unreal Engine 4. It’s very nice and I’m willing to bet it will translate well enough to console systems which I believe was the hangup before with other GI methods.