Marie, thanks for the progress report. I’m a Sigma MC-11 user and from what I can tell most serious adapters have moved over to the MC-11 from early preference for the Metabones. The MC-11 is more robustly built and simpler to use (no two modes and flash lights and extra buttons) and at least equally effective, particularly with Sony firmware 3.0.
I’m up to date on this as I seriously considered picking up a second hand Metabones V recently. Research indicated adding the Metabones would just be a headache, with no clear performance improvement with any category of lens. Most people bought the MC-11 as not only was it better built, it’s always been far more reasonably priced new.
In short, there’s no need from me for Metabones tests.