Pontoons have sidecut. If you can, go look at one from the tip down the base, and there is some that goes a bit behind the binding position. Not a ton but enough to help on groomers.
And I just read the link, I guess limited edition..I wonder why. If they are making Pontoons, just make these instead. It could be that they already had a ton of Pontoons with graphics on them already made, though.
"Approximately 500 Pair of the unique, individually numbered, commemorative skis will be produced. All net proceeds generated by the sales of the Shane McConkey Tribute ski, suggested retail $600, will be donated to Shane’s family."