I've read various discussions from time to time about the applicability of 91.205 to VFR flight for E-AB aircraft. From what I've gathered while technically no instrumentation is required, getting an FAA inspector or DAR to sign off on the AWC would be problematic.

And for those who might say they have to sign off, you'd be wrong. I personally know one FSDO inspector that insists on there being a whiskey compass installed in the plane even though the FARs clearly state otherwise. No compass no sign off -- simple as that. Not saying it's right, just pointing out that this is a case where theory and reality have the likely potential to clash. YMMV...