How Did Jason, Spencer And I All Get Our Dynamic Soaring Planes Over 500mph?

We took em in a jet to Weldon. Also check out the maiden of Jason's "light" Thundertaker towards the end of the video. He's able to fly tighter laps than I've ever seen him do with a Thundertaker because it was so light. Also you may see at the end of the video what we all see when we get a little low. Nice Job Jason!