I was one of the Lucky ones to own one of these Monsters. Mine was Blue. Don Montague is a friend of mine and he was kind enough to have one made for me when he was the kite designer for Naish. Actually flew pretty good surprisingly. Pulled like a Caterpillar Bulldozer!! You could relaunch it off the water fairly easily. Leading Edge was the size of a Palm tree trunk!! Luckily I had an Electric pump or I would have had to take a Nap after pumping it up.
The 30m was a beast - I had a go on one when they came out & decided that a 25m V4 was enough.
As above, the 25m has more torque than a train. They may not jump high, but they glide forever and the light wind ability was great - not efficient or fast - but providing there is just about enough wind to fly the kite, you will be planing!
On the next light wind day, I should give it a go on the hydrofoil