Issyn-Ryu- what's it like?

[isshinryu5toforever]

By low kicks, he generally means to the abdomen or below. Don't worry about the fist too much, it'll get more natural as you train more. They start beginners with the thumb way on top to get them into the habit, but once you've been doing it for a long time, it drops a little bit, not too much, but enough that it's more comfortable. The thumb still remains above the knockles of the index finger when the fist is held verticle.