Congratulations to your grandson Phyllis! It's always a wonderful thing to hear people, especially younger people such as your grandsom, continue and progress in the arts. They are our future and who will carry Martial Arts to the next level.
I've heard of similar systems to your TAI. It's becoming more and more popular to see the mixes in styles for the very reasons you're stating: ability to change up tactics and keep the opponent guessing. I often wonder if this is not a bit of history repeating itself as there was a lot of "mixing" of systems way, way back when which ended up with the major systems we see today. Just like living creatures, the systems that will survive to the next generation are those that can adapt to the changing times.
