I'm sorry but that is utter BS, flex is the most important factor for soft landings, and boards with a nice big single concave are softer than double concave, i.e Shinn and xenon, which are the softest landing boards in around

[quote]flex is the most important factor for soft landings[/quote]

sorry but this is also bullshit.
the more rocker the softer the landings.
soft boards will flatten out on landings and will make for harder landings.
tip flex on the other hand will increase rocker on impact and therefore they will feel better.
but midflex (flex between your feet) is about the worst thing to have for softening landings.

double concaves in the midle will increase stiffness and will give softer landings (given we already have a fair amount of rocker in the board) compared to a single concave board with the exact same shape and thickness.

it also depends on how you land: if you land tail-heavy a flexy board will help.
if you land neutral, a flexy board will flatten out or - even worse - will be bent into a camber and it's likely to catch an edge on a wave with the tip and to trip over to the front.

can't talk about the trax and the select and all the other boards mentioned in this thread, but the joke has a fair amount of rocker. the bouble between the feet actually increases the rocker as it adds up to the rockerline.

from experiance with the joke i know it is one of the softest landing boards i have tried.

I don't want to ruin your nice theory, but you are wrong.(now I don't know how to treat your boards recommendation)

flex is the property that kill board landing and poping.
as the guy above me said, soft landing are depend on the bottom shape of the board and it is a combination of rocker and concave. it has nothing to do with flex.

Ahh still wrong to a degree. Concave thru the center of the board does not add to soft landing only in the tips. Rocker is king for softer landings. Good rocker, stiff between the feet so the board does not flex in the center. You want the flex at the tips which will absorb energy and displace water.

This is why I said the Joke was super soft landing before. It has a continuous rocker and the bottom is convex. It really displaced water very well. All so technique, kite size and aspect ratio will determine how hard you hit the water.

All ways ride before you buy !

select select !!!!!!!!! very soft landing

Single concave, double concave, high rocker, low rocker, wide tips narrow tips....
I don't understand all that crap, but what i do understand is how the board feels on my feet.
For me there are only two choices - F.one Trax and Xenon LaLuz. Don't actually know what the specs are on these two but they sure kick ass