Have not kited Woorim but looks like it would be sweet in SE and hterefore thinking of it this weekend - anything that the locals can share is greatly appreciated. Don't want to annoy anyone.

I used to live at Woorim, but that was long time ago and I was a poley back then. Don't know if anyone kites there nowadays days, but it's a sweet beach with generally small waves. Great in both northerly's and southerly's. You might want to keep an eye out for:
Flagged areas and crowds (Which is easy because it's such a long beach)
Sometimes the beach can get narrow when it's a big tide.
The tide runs pretty quick along there. Trying to ride when the wind is blowing the same direction that the tide is running was very hard work indeed.