Is there any way to find out the true surface area of a kite EDITED 'from the manufacturer or from other sources'? Is this info available on requests, or through distributors of the brand?
As most of the design is done on computers, the manufacturers must have the exact figure. Then we would have true comparison between similar kites of the various brands, and we could build a quiver with a mixture of brands if we like.

It's frustrating to see a kite advertised as an 8m, when it's surface area is hardly bigger then 7. It is actually called misleading or outright cheating, unless they specify somewhere the correct figure.