For light days consider a kite built specificly for light winds. Big kites are slow to turn and heavy. Sometimes a smaller lighter faster kite will work better on light days.

Also, consider the cheaper option of buying a bigger board which will last a lot longer than the kite for half the price.

How light are you looking at? I used to have a 16m Cabrinha Contra when big kites for light wind were the thing to have. I find it quite boring kiting in really light wind with a big kite. If you're looking at getting out in 10 - 15knots then a 14m sblade should do the trick. I've had a 14m SS TD1 and a 2008 Sblade 14m in the past. They are both good for around the 10-13knot mark. Under that I don't bother.