I should have clarified here what light wind means to me.
Less than solid 9 knots
I would feel totally safe on any foil relaunching in solid ten or better.
The problem (I found) is that some foils are so darn good in really light wind, that you don't realize just how little wind there is. Then, if your kite goes in the water, you suddenly realize... holy cow.. I was riding in THIS!
Just wanted to clarify. I am talking wind so light that it might drop to 4 (easy to do if only 7 or 8) and you might have to swim in.