Convex mesh scale

I try to export a mesh out of 3dsmax using ogremax exporter,
but if i bake it using floor and import it into ogre, it is about 10 times
bigger than the mesh i use for the rendering (which i used to bake the
physx mesh before). this happens if i choose "meters" as scale in ogremax,
i get the correct mesh scale if i choose "standard". only on standard, the
2 meshes have the same size, this is because of dotscene format.
is there a possibility to set the size of a convex mesh to fit to the mesh
for rendering?
i use 22t5 bleeding,
thank you very much!

regards,
christian

just pass a scale param to flour, when you bake the mesh.