a99 and Flyboy:
I dont know what the lowend is, yet.
Have ridden it 1½ hour thats it - will take a loooong time to find out.
How it compares to a LEI is difficult to check, as I dont ride these much on foils, only when wind is between 7 and 9 knots I use a strutless 12 m2 sometimes, otherwise in both less and more wind it is usually foil kites.
I would think the 6 m2 corresponds to an 8-9 m2 LEI as you say, yes.
I dont care much though, as it is 1 m2 bigger than the 5, so that is what we are many having missed it seems here on the forum, this size - as the 8 is great, but for light wind 8-9 knots maybe longer lines, and not for aggressive waveriding/turning and super agility.
The 6 is
4 and 6 I am certain can overlap indeed
But having said that, I would not do it myself, but that goes with everything - small steps are much better and easier in my experience:
You can choose the exact size you need on a given day, instead of knowing you take one a bit big or a bit small, on many days.
You dont have to be uncertain which size to choose - you choose the right size now.
Also, IF shit happens and you wreck a kite, you can still ride on the rest of the day, in maybe "mythical" good conditions - what a shame to NOT have a kite here...
Not more expensive at all, as you distribute the wear over several sizes, so same same in the long run
I bought a 4 an 6 m2 Duotone V2 for wingfoil, thinking it could work just fine.
But kept my old 5 m2 V1, just in case...
And found out I use the 5 m2 in between so often, that I would NEVER rely on 4 and 6 only.
I know its not kitefoil, but somewhat related regarding sizing.
Peak4 in 4 and 6 can work indeed, ranging for the average weight on surf foils from 9-10 knots and up to 20 I believe - well you can survive in more, but it should also be pleasant, right?
3-4-6 could be a great choice indeed, as a complete quiver ranging from below 10 knots to 25 knots or more.
Again, I only have these 1½ hour on the 6 m2 kite - but seeing and feeling that it turns awesome, is key point for me, so it is a winner in my book (can not speak for others)