multiple overlines -> how to format them nicely

[aslmx]

Hi there,

i asked another question regarding overlines and pre-defined styles, but also i want/need to use mutliple overlines
(the other question, as soon as it is enabled should be here: define a style for math overlines )

I have an example here:

The overlines look quite dense and it is difficult to tell them apart.
The picture shows what it should look like when it is stretched.

I set 25% spacing for smybols in the formula spacing options, but it seems to not work with multiple layers of symbols/overlines.

Is there a way to accomplish a better looking formula?

The Formula code is:

overline y = overline { x_2 x_0 } intersection overline { overline x_1 overline x_2 } intersection overline { x_1 x_2 overline x_3 } newline
y = overline {
overline { x_2 x_0 } intersection overline { overline x_1 overline x_2 } intersection overline { x_1 x_2 overline x_3 }
}

thanks for any help!