I don't have any experience with kiteng yet but I have ingenious idea for windsurfers in nearest future.
Suppose somebody ( could be even Windsurfer as kiters seem not that bright) will invent self flying kite at pre - programmed angle to the wind.
Such self flying and pulling kite could be than attached to the mast base for constant boost to the windsurfer effort.
At turns kite also change direction to the wind automatically.
Small size kite - similar to the training one should add nice boost to the wind-sailor in light wind conditions ( as in stronger winds we don't need any booster at all).