This sketch may help you understand the inner workings.
http://www.hoverclubofamerica.org/forum/in...si&img=1145
Video of first flight on grass, later flight on wet grass in the morning were much faster and encouraged me to go out on to the water several times.
Flight 10a (grass):
http://www.youtube.com/watch?v=Mt-EhS40788
Flight 10b (going out in water):
http://www.youtube.com/watch?v=xs_58qICi0c
Flight 10c (coming back in to shore):
http://www.youtube.com/watch?v=ywfD2-c_4lw
The pressure in the skirts was much higher than the capture air bubble under the craft. When I tried to turn the stiff skirt burried its self into the water slowing the craft down enough to take it off cushion. With no reserve thrust I could not power out of this situation and had to make it to shore flying across the sandbar and getting back on cushion. Water operation on straight high speed runs was encourging, but not being able to slow down (no brakes) really was scary as the water level was low and many sharp rocks were everywhere.
I tried to balance the air pressure, there are two (2 inch PVC pipes) feeding the stern skirt, and only one 3 inch hole feeding air from the duct to each port and starboard spnoson/pontoon skirt.
I can either bleed air out of the bags like an Aerocruiser or attempt a combination bad/finger skirt of some sort. I could also just have very tiny holes feeding the bag skirts which will give me more lift. I closed off six other air holes each side, when they were all open the bags were ready to burst and over the grass performance was not as good.