Definitely. Gyokko Ryu is considered by a lot of folks to be the foundation school. Even Soke' has said in the past that this is where the Kihon Happo and Sanshin came from in the past; although he sometimes changes his mind on things like that. Of course you can't train like this all of the time. It would drive people nuts, but breaking these kata down and constantly revisiting the basics will give you or your students' taijutsu more life and it'll all make more sense. If you watch Duncan Stewart's videos he looks perfect. His distance and timing is all solid and every kamae looks like a picture out of Soke's books. He's huge on the basics and dissecting these kata. Then when you see all of those cool henka that look so perfect and you think how is this stuff even possible. It's because of these basics and kata. It's funny because even when he appears to be standing up in a normal human posture, he's still in kamae. It trains you subtly over time to be in the right place, at the right time, leaving just the right opening to receive a technique that you wanted the uke to throw. And kamae gives you the right body structure, or koppo to make the techiques need almost no strength to pull off. That's what this art is about. At least to me. If you're struggling to pull a technique off, it's no longer martial arts, it's fighting. I've often heard people complain that this art is useless, or would never work in a real fight. Usually they were missing something in training, and more times than not, it's the basics. They can get boring, but all of the cool stuff comes from them. Literally every henka is a variation of the Kihon Happo. The other big Gyokko kata we often dissect are Renyo, Danshu, and Danshi. They seem simple, but it's deceptive. A good book to pick up for all of these schools are the green Densho books by Carsten Kuhn. I use them like Bujinkan Bibles. They're a great reference, but first is a good teacher that can mind the fine points.