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djdojo said..
Hi all, several times over the past few weeks I've seen newbie foilers on massively oversized kites for the conditions - 12 and 13m on days when I've been comfy on my 3.5m, albeit at its lower end.
Too large a kite will make learning unnecessarily dangerous (hard to regulate speed etc) and reduce the rate at which you get in tune with the foil and make use of its efficiency. If you can't ride with your kite lowish, you won't be able to learn the foot pressure required for regulating the height and roll of the foil, you'll tend to just sheet in and out to regulate height.
Rule of thumb for new foilers - if twin tip riders of your size are on 12s, take a 7 or 8. If they're on 10s, take a 6 or 7. As you progress this ratio will become even steeper. I'm on my 5.5 when skilled riders are underpowered and struggling to hold ground on 14s and twintips.
This seems to contradict many other sources that suggest using the same size kite as you would usually use for the given conditions on a TT or surfboard.