Question about symmetry in 3ds max8 and compatibility with brawl

[toastoftriumph]

I figured out how to add symmetry to polygons; my question is, will the model still work for Brawl (even with the same number of vertices)?

[Beyond]

If you apply a symmetry modifier to a polygon it changes the vertex order so you won't be able to export it correctly.

[toastoftriumph]

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So is there any way for me to shape one half to another without the symmetry modifier, other than manually copying and pasting the points across the axis?

I remember something about a mold tool in some version of 3ds max (perhaps a newer one). Would I be able to copy the polygon, flip it, and mold the original to the copied one?