Good news for me, an avid Cambo Actus user. I have all kinds of both front and rear boards or mounts. Capture Integration is carrying the the GFX version in this country, and I am told soon. I work with Steve Hendrix, whom many of us know. And there is some exciting news for me. This is not a complete new system for the Actus, but an add-on that will allow full GFX compatibility. Here is what I understand:
The upgrade is $1345. It adds a riser to the front standard, replaceable using a Star-Key Allen wrench, a T8. As for the rear standard, with a single T6 Star-Key screw, the existing rear standard can be removed and the new standard installed, which has a GFX board. Now for the great news, something I have asked for since the beginning.
The new rear standard is no longer something you screw on (with tiny screws), but rather on quick-release. And, for $215 you can have a Nikon board with quick release, meaning we can change cameras in seconds in the field. This is very handy.
Here is a photo of the two mounts sent to me by Steve Hendrix who, as usual, is totally helpful.