RE: Predator
Hmmm, that is weird, I have the 63" camo version, one thing I did notice, neither of the two you mention, at least from the photos, has the upside down vertical stabilizer that mine has.
Must of changed the design. I like mine with the 3rd tail as I put a metal skid on it to keep the prop from hitting the ground on take offs. The way they are in the picture, you'll be grinding up a lot of props if your take off angle of attack is too steep.
Well if you ever get one you'll like it. Flies very well. I equipt mine with a hacked CVS vid camera.