Well, whatever works for you. But render/curve quality should be good when using "Production" in "Rendering Approximation" (it defaults to that here, dunno if this is a global or local setting).Good Luck
Though I have another issue now - the parts don't have enough subdivision resolution and are all low-poly, the curves look nasty. So far the solution seems to be to pick the part, go into the body properties, check "use viewport mesh" in rendering approximation tab and...do that for all the other parts...at which point it's still faster to import as mesh and reset the xform on the whole thing. :/
