Yup, LWO is the best way to transfer to Modo.

Also if you've made a model out of individual surfaces, make sure to join them together into a connected object before exporting - MoI will do extra work at joined edges to ensure the mesh is connected in those areas and that all joined pieces have the same normal orientation. Also it's best if you have joined pieces together into a solid because MoI knows to orient the normals of a solid towards the outside of the solid.

- Michael