Jeremy, I would argue that the Megabar was first in line for the very large scale sport jets. I saw the mold about 4 or 5 years ago or so.
When I first saw it, it was the biggest jet I had seen. Far larger than any other sport jet. Now when I pull it out, most folks just say "That's about right" my how times change......
The specs on the megabar are just about identical to the UB though a lot less weight and 1/11th the cost.