He is a hard worker. I watched him bust his double for over a year (literally probably 300 times) before he started hitting it. And he's "cheer smart" as Tye Hill calls it. He fulled his pass this weekend because he knew he came out of his Russian (if you know tumbling you recognize he doesn't punch front, he Russians....result of a male gymnast for his life long cheer tumble coach) a bit off. He'd rather hit a full with good technique than push that double if he's not feeling the set for it. Same reason he didn't push that coed stunt to a lib, (it's supposed to) she was toe-ing down a bit for his grip and he didn't think they'd hit it clean so he grabbed her foot and just pushed it to two leg extension rather than risk a deduction. They work well together though, he seems to be able to tell her when to do that or not just by how he has her feet.
The standing full actually came a lot faster than the double did. Coach Dave at CEA Charlotte showed him some drills one day last spring and he just worked and worked and worked them on his own until the result you see here. Thanks for the comments though, I'm going to miss that kid in another year when he trades his cheer uniform in for an Air Force one. Trying to savor the time I've got left.