This is the new, shorter arm version of the VMAA mount. I've got the original VMAA supporting a 42 Panny, which works fine. These single arm mounts do have some "play" in the level mechanism when extended off to the side, such as when used for corner or swing-out mounting. It's not an issue for straight-out extension usage.
You might also consider the dual arm VMDD if you need better off-axis leveling control for the 50" Panny. When I looked at Costco online recently, the single and dual arm versions were about the same cost.
You might also consider the dual arm VMDD if you need better off-axis leveling control for the 50" Panny. When I looked at Costco online recently, the single and dual arm versions were about the same cost.