No, you forget mixer is not in play at all if kite is depowered
Wrong there is degrees of depower, for which A B C and Z will play a part. The main bridles for depower are A and B.
Kite shape is then what airfoil and low and top skins make it, a kind of "true" shape of the wing itself.
Wrong, kite surfing kites because they lack rigidity, like most kites, always rely on their bridle to create their shape in addition to other things. I am not sure if any inflate shape matches the bridles exactly, as too many forces are interacting.
main function of any mixer is to allow AoA change for kite
No wrong again, your lack of knowledge is really showing.
The main and only function of a mixer is to alter line or bridle tension (or lengths) to the kite. Which in turn affects the kites shape ( or orientation). Which in turn affects the aerodynamic properties of the kite.
I think it was me who earlier explained to you how camber changes (or doesn't change) according to line row positions and certain mixer
That is quite obvious. You have explained many things to me I already knew.
What is apparent in spite of me explaining things to you, you still don't know them. Cant teach an old dog new tricks it appears.
However this is a kind of fine tune function, a small bonus which isn't at all a necessity in a kite.
You clearly don't understand this.
Jackomixer decreases camber when powering up in practically any kite, it just pulls B-C so much or too little Z.
Not on any kite I know, but hey it is likely there is kites it won't work with well, this is already well understood.
Only example of really meaningful varying camber is so called Turbo line which increases camber in high AoA.
You mean the diablo line. That is not the only, there are many. Like different mixers, wac line, kite bridle setups and more.
Normal method where kite increases slightly camber when powering up (one third of late FS "triple depower" (more like power actually)) is only a small bonus like I already wrote.
No it is an extremely powerful use of the mixer, being the ability to alter a kites shape. The fact many kite designers may choose to only use it in limited ways, like changing the tow point, does not say anything about the capabilities of the mixers, but of the capabilities of the kite designer. We already knew that though, that kite designers are generally not of a high IQ and there primary abilities lie in graphic design and changing the colors of kites. I mean you look at the most famous kite designers and that is largely all they do. The facts they get kites to fly seems to be the result of guess work, not any fundamental understanding, though some of that may appear with time.
which means we have set the max angle of attack of the wing that was originally designed
Most mixers usually have no problem reaching the desired max AoA. The jackomixer does not really change the achievable AoA but only the profile.
which means we have set the max angle of attack of the wing that was originally designed.
The jackomixer shouldn't be a problem for the AoA. I originally thought it could but it relaunches fine. You shouldn't need to set the max AoA on most kites, only the min "AoA".
With this start we do not mess with the original profile and angle at max power. We only influence through the depower.
I get what you mean, and we have discussed this before on the forum. You would need to alter the profile to achieve the same profile at some AoA.
I have sent this excel to some brands in last year and I received little help - to increase depower I have to increase B relative to A or set the profile to more camber which will be less stable.
Don't expect the "brands" to know much as they are winging all this. At the basis of any brand you have the understanding of the kite designer when it comes to kites. Well if you look at my arguments with a so called "kite expert" you should immediately raise flags about their knowledge, or maybe mine but I am quite certain of what I know. I have even had the much lauded Armin from flysurfer disagree with me, and since a long time, and still somewhat today. But he has come around, even asking my opinion on something. Not sure to what help it was, but he made a good suggestion I took, unfortunately I don't have time yet to try these things.
I will explain it again but you don't need to alter B to change the profile, and you shouldn't. You do need to alter B or the pulley line length to change the depower, but that doesn't mean you need to change the profile. You can compensate for any change in the profile caused by altering B by also altering C and Z. I will repeat B should not be altered to change the profile. The maximum depower is usually with only tension on A, it has been designed like that on any good kite. Altering B changes that. Most anyone recommending any changes to shorten B are ignorant to that fact. B should usually always need to be lengthened.