Archer77 wrote: ↑Tue Jan 23, 2018 1:00 pm
but at the moment I was trying to understand, if you have to choose on the exactly same model board(selected on all the spec up) speaking of a freeride twin tip, for the SIZE, you will give priority on the condition (over/under pw) or your weight? or maybe both equal... (make a particular case example if you prefer)
(ok I know too, that chop or flat water are making in any case a distinction them self)
Your stated variables make it into a calculus problem where you wind up with multiple answers along a given line. Simple grade school mathematics is the only way you will find a definitive answer.
For clarity when I state "conditions", I mean gusty/dirty/updrafty and/or big lulls in wind speed. Or "conditions" can relate to the surface conditions where you are riding (chop, swell, flat, waves). Under or over powered would refer to your "state of being powered, whether under or over. "Conditions" are unchangeable for a given location. "Under or over powered" is your choice - or rather what kite size you pick.
Wind consistency is the first variable you solve for. I kite in un-kitable winds, to ocean clean and steady, to nasty ocean winds with mountain effect turbulence (Oregon coast) at certain angles - given that I travel for wind and also do lots of inland kiting. So some may not have experienced geographical variables to give advice on this. But this determines kite and board selection for most riders, even if they are just in a good clean wind area and do not have to worry about it. So some skip this first step.
The next thing you solve for is rider weight vs wind conditions. If you ride in a fluky wind area you upsize from your recommended size.
The next thing is you solve for is rider skill level regardless of the wind conditions. If you are skilled and can beat at least 50% of the other riders up-wind when underpowered, go with the smaller board size.
The next thing is if upwind is more important to you. If you like to get upwind quicker so you can do more boosting (where you lose upwind), go with a bigger goard.
The next thing is water conditions. If your main kiting location has "current in the same direciton as wind", then still go with a bigger board even if you are highly skilled. Or if you are in an area where current opposes wind, then go with a smaller board even if you are less skilled
The thing you DO NOT solve for is kite size. You have multiple kites of different sizes for various wind speeds. And you can up-size the kite to make up for not enough board area. BUT YOU STILL MUST HAVE A BIGGER BOARD FOR LESS CONSISTENT WINDS!
My take on your question is that you are trying to have only 1 twin-tip. This is almost impossible if you kite in many different conditions at various locations. You can have only one TT if you only kite in one location with pretty invariable conditions. Some Gorge riders get away with this. But there are not many locations with lots of wind days in a narrow range like the Gorge.
You need 2 TT's at a minimum if you kite different locations, or, if you kite in one location with a wide range of winds and conditions. Once you have 2 TT's, then you can assess the bigger kite vs bigger board.