"Ho I see 3D-Coat is a vertex paint ^^
That said you don't have to subdivide your model in zbrush if you 'only' paint on it."

Yes, I've tried doing exactly that with tri/quad only exports into ZBrush and while some models come in pretty decent like my MOI spin on the Olympus Mons structure:


(I see the front plating came in from MOI with the normals flipped - I guess due to being a non-closed surface. Not sure how to fix that...)


Other objects unfortunately leave a lot to be desired:



Now if there's a technique on importing curved objects that I'm missing for situations like this, I need to find out about it!
I told MOI's mesher to break up anything larger than 2 which gave me way more polys but there's no smoothing info I guess to make it look as clean as it does in MOI.

-Will