Sorry, I can't be any help but glad I'm not the only one considering the predator 4x4 rack.
A few people on here have the flatdog and rate it highly from what I've seen but nothing on the predator that I could find. It's a 4 hour journey for me for fitting at flatdog (otherwise expensive delivery) so a bit far unless we can find another reason to go "up north", hence why I've been considering the predator one