About the patterns, the up-down movement is a way to generate power, by adding our weight into the movements, rather than just arm/leg power. We call it the Sine Wave. If you go down as you move forward, you throw your weight into the technique.

As for the sparring, we just have a couple different types of sparring: Grading Sparring (which is mainly about showing off techniques to show how much you've learnt, no contact), One/Two/Three-step sparring, which is nothing more than two people doing patterns/forms in a way that shows off technical knowledge of defensive techniques, and tournament sparring, which is basically... sparring. Everything above the waist is a target.

To a WTF person, I imagine our patterns/forms look kind of nauseating with all the up-down movement.

To an ITF person, your patterns look kind of stiff.

I find it interesting comparing different styles.

Back side Kick?

I think wwe call that either back piercing kick or reverse turning kick.

No offense... but kicking giant standing heavy bags doesn't sound all that impressive...

So you got the better sparring, but we have the more artistic patterns...

Well do you have forms? Whuts yours atm if you have one?

Just wondering. Does your style of TKD have "patterns"? Could you link me to your current one (if you have one)?

Here's mine. Yul-Gok, they call it.

Needless to say, I don't know the guy in the video. I just did a quick look-up of "yul-gok" on youtube.

EDIT: fixed link.

Lol, I'm in ITF.

I heard something to the effect of
WTF - Mainstream, competitive, Olympic version.
ITF - "Traditional" version.

Not sure if it's true, but it sounds likely.

Well good luck with your entry.

And are you sure that JiKwonDo isn't just a different martial are altogether?