The design discussion above is important because it is the application of these elements of design into a wave ski hull that makes the Infinity wave skis different than any others.
Infinity rocker is not a smooth parabolic curve like a surfboard. It is measured and crowned (focused) near the center under the seat. This creates a pivot point that will allow the ski to rotate (turn) from the center easier. When the nose goes right, the tail goes left. (counter-rotation) Most wave ski and “surfboat” makers don’t understand this principle and they apply the rocker too close to the tail like a surfboard or they just don’t put in the right amount of rocker.
Again, the outline of Infinity skis is not parabolic but focused wider at the seat to combine with the pivot effect of the rocker.
If you are an accomplished stand-up surfer, or new to surfing, riding a wave ski can open up to you new visions and possibilities in surfing. It offers diversity to your surfing routine. Wave ski surfing is easier than stand up surfing. You have a lower center of gravity and you can’t fall off because you are strapped on. This fact actually allows a surfer who can’t do advanced moves standing up learn to do vertical “off-the-lips and snappy Round-House” maneuvers like he never dreamed possible. Wave ski surfing has actually improved my stand up surfing.
You may enjoy this old 1969 video of Merv Larson the father of waveski surfing in California.
Like in regular stand-up surfing, the young hot guys like to ride short skis under 8 feet long while the older or bigger guys prefer to ride longer skis from around 8'6" long to 11' long. A wave ski turns pretty well without a rudder up to around 9'6" long. I have found that if I add a large, powerful rudder with foot steering to these longer skis, they will turn and perform as fast as the shot skis. You can see in the second video below 70-year-old Jack George ripping in Mexico on his 9' rudder ski.
You may notice that short skis have a very thick tail. This is to enable an "Eskimo Role" where after a wipe-out, you can use your paddle to flip yourself right-side-up again. But you need to flatten your body against the ski deck by laying your head back on the tail of the ski. This requires more floatation in the back of the ski: thus the extra thick tails on skis under 8 feet long.