One thing for certain is that putting kinetic wing blades on your shaft that measured 210 w/norkapp blades will render a paddle that is considerably longer, not because the effective blade length is much longer but because the design of the throat area is different than other blades. KW blades on any lendal shaft leave you with a paddle 5cm longer or so than with Archipelago, Nordkapp, or kinetic tour blades. a direct swap on the same shaft may well leave you with a paddle that is somewhat long for use in the ski. Unfortunately, for the price that the blades and shaft will cost, you could get a brasca, g-power, epic or Jantex, all of which are ultimately better blades for going really fast. Your idea has some merit from the standpoint of convenience and expense, and yes you can definitely paddle a ski effectively with a kinetic wing, But the KW requires alot of finesse and technique to derive power in "wing mode" as it doesn't demand that you use highly rotated, stroke with a vertical catch. It works well like this, but doesn't actually encourage this. The other wings mentioned basically only work with wing technique, and give alot more immediate feedback when your form is poor. Because this form is really how you derive stability in the ski, I don't know that I would recommend the KW, as much as I like it, as a paddle for your first ski. If you have any stability issues at all in the new ski, they will be amplified with the KW whereas other wings will immediately help stability. I had already paddled with racing wings for 15 years before I even tried the Kinetic wing and had stroke technique fairly ingrained in my muscle memory and so was able to bypass the learning curve of that paddle somewhat. If you are primarily touring in the ski, you will adjust eventually and the familiarity might have some benefit,. Hope this helps