Make sure you get the Vision FC4 model which is HDMI-to-Component. Some of the Ebay postings are misleading by having "HDMI" in the title, but it is the wrong product. The FC4 will cost you about $180 from the company in Florida.
Roger, I have a HD-A2 that will be shipped to me approx June 26, and will likely have Firmware Ver. 1.6, and will be hooking it up to my Pioneer elite PRO-710 via the FC4 converter, so your dilemma is important to me also. Hopefully, someone else can answer your question before I get mine hooked up.