The content that Frazer teaches should be standard, flat out. The competition style of math has so many more practical applications than the shit they call common core in the state of Florida.
Now, we did all of Geometry and Algebra II (Frazer's competition courses, not just regular courses) in a year. When students are excited about learning, and you make it fun, you can really throw a lot of material at them.
But any part of Frazer's "system" outside of the content I think pretty irrelevant for regular teaching, like him using class time to teach competition material. That's just how math class is for every other kid. 8 hours a day for a month over the summer learning and teaching math? Hard to organize that without having a team, among other things.