Very fickle conditions this time of the year with the NE monsoon fighting with the Summer pattern try to re-establish itself again so it's all about timing. The forecast can change daily and mostly does there is no way of knowing that there will actually be decent wind this coming weekend and if windguru forecasts it - it will probably change radically by Wed or Thur! Cheung Chau is no good on N direction - always has to be some East direction so ENE (gusty) E or ESE works well. Lantau better than CC if wind goes too far around to the N but busy place with 30-40 guys out on a good day in a small shallow cove
I would bring the biggest kite you have, I normally use 16m torch but if you a lighter rider (under 80kg) you could get a way with a 12-14. Best time to kite if we get a E or NE wind is the morning - the earlier the better as wind can be gone by lunchtime!
I will be looking to get on the water Sunday as I work Saturday although might be getting Sat PM off - finger crossed Windguru hasn't already jinxed it for the weekend!! Might see you on the water...