G21 Surf Wake in Shallow Water

[F725]

"0" on NSS is fully extended. Confirmed this with Nautique officials in the past. The further out the plate, the longer it takes for the waves to converge behind the boat... meaning more time for the "surf side" wave to push over towards the "non surf side" = mellow / non steep wave.

[theskunk]

I ran into an issue this weekend in my 211 surfing in shallow-ish water, I had never heard that shallow water creates a smaller wave before, and am now in full research mode to figure out how the hydrodynamics work to cause this effect.

Anybody done some research on the topic?

[all2matt]

all I know is the wave builds from below so when you hit shallow water it reduces the ammount it can build. I may be way wrong here but I would think of it more as a swirling effect and when it hit the lake bottom it stops the outter swirl thus less vloume to build back up and create a wave. Again I dont know this is just what I assume so hopefully someone else can correct this with actual info.

My tige Z1 suffers this same depth issues, below 10ft its gone, 10-15 ft its reduced but rideable, 15-17ft much better, and over 18ft+ its maximized. All this with approx 1000#surf rear, 300# offised rear, and 400# front.

[nyryan2001]

Maybe I have the 0-5 NSS Surf vert tabs extension backwards... But I can tell you I am always between 0-3 max. 4-5 make the wave terrible.

And at 12ft depth and less... You significantly affect the wave badly. 15ft+ should be the goal.