Hi Warren,

>> "I can repair any booleans I made in MOI, to do it you have to know some repair techniques."
>
> Right, just like subd modeling.

No, the repair options are pretty different with NURBS modeling compared to sub-d because NURBS has the concept of an "Underlying surface". When you do a boolean operation on a NURBS object new trim curves are created but the original full surface is still underneath those trim curves and if you erase the trim curves it will restore the full surface.

Sub-d modeling does not have any concept similar to that, if you eliminate some portion of a sub-d mesh you can't then just remove the boundary areas of where you cut it and restore it.

- Michael