Lighting Grass

Dear all

I am wondering if anyone has any ideas for the following situation:-

You have a largeish level covered in grass.

You can’t have the grass as static, as the memory used by grasses lightmaps crashes lightmass.

So you have the grass as movable.

But now the grass looks over bright in areas that are in lightmass shaded areas.

Anyone had this ? anyone got ideas for how to make the grass in look better ?