"Over foiling"
is that simply having trouble keeping the wings in the water - creating too much lift to the point it where the foil comes out of the water?
I guess stalling is when you drop speed for whatever reason and touch down?
Yeah dumb question, and feel like a 
but I rather ask and get it right than guess and get it wrong.
Select to expand quotehigh as a kite said..
"Over foiling"
is that simply having trouble keeping the wings in the water - creating too much lift to the point it where the foil comes out of the water?
I guess stalling is when you drop speed for whatever reason and touch down?
Yeah dumb question, and feel like a but I rather ask and get it right than guess and get it wrong.
It's a good question as I have wondered what this meant as well. I just thought it might mean too overpowered to foil in control but that's just a guess on my part. Your idea of the definition makes more sense.
A quick google search talks about people getting up and riding then "over foiling".
My biggest problem as a beginner was I would be happily up and riding then get faster and faster until the front wing popped out of the water I would face plant. It hurt. A lot.
To fix the problem I rode with a smaller kite, got better at controlling speed, and developed a heap of techniques for getting my centre of gravity forward. That helped a lot. It got to a point where going fast and swooping the board down onto the surface was a fun game.
The ultimate solution was to get a good carbon foil and it could handle speed much better. It "almost never" happens now.
It probably means a variety of things.
but maybe it's when you get too much practice and get too good at it then get bored and "over foiling"
I think ventilating is the term used for when the foil is about reach the surface. Starts making a gurgling sound. Happens when learning on a shorter mast quite easily until you're confident riding a smaller kite than you usually would, due to being overpowered and having your increased speed making the foil rise.
