How about the kitesizes in cape town? (which weight and kitesize?)
Around 78kg on wavebords, I went with a:
A couple of times the 4,5 was a bit to the "overpowered" side, in the evening at some spots.
My 9m2 never got out of the bag in the 2 weeks I was there in january/february 2012 - too much wind for this size.
2 days out of the 14 had no wind at all - otherwise it was 4,5 or 7m2 every day.
And the 4,5 and 7 was used equally, the same amount of times/days
Could still be fun to get one "low wind" day eventually, where a 9m2 could be used - just to get cleaner waves - but havent succeded yet....
A luxury problem though
But I've heard about some being down there with VERY different winds, so we were maybe just lucky ?