I was wondering if any of you who have experiance with the Isshin-Ryu system of karate can give me a description of its common methods and principles that a person may see a Isshin-Ryu fighter use?

I know the system is supposed to be very self defense focused and the result of blending both Goju-Ryu and Shorin-Ryu.

What types of ranges or movements does this system work with the most and what are some of it's signature tools.

I know that they use a vertical fist over the standard karate striking fist and was wondering what else is there?

Just curious and thank you in advance.

Regards