Hi Ed, for displacement it's generally good to use the "Divide larger than" setting to generate more evenly diced up triangles.

See here for an example:
http://moi3d.com/forum/index.php?webtag=MOI&msg=2833.5

re:
> So it doesnt have enough geometry from MoI and I have to subdivide the
> mesh but the subdivision doesnt go well with ngons nor triangles

So do you mean you're trying to do the subdivision _after_ you've done the transfer from MoI into your other app?

If so then try doing it at export time from MoI instead, using "Divide larger than" as shown above.

That should produce a better result since the subdivision will be based off of the CAD model instead of trying to generate polygons on top of polygons.

- Michael