Abandon SE4?Opinions:Space Empires 5 screen shots?

[Roanon]

"I'll just refer to Kwok's post:
Production is like SE:IV but you can construct multiple items per turn for any item. "

Maybe I have misunderstood this - sounded to me like you can construct X ships of one specific sort, like you can do with units in SE4. But it still is unclear to me: do you still have to construct ships in a way to be as close as possible to a multiple of your construction/turn? In other words, if ship A finishes, do construction points spill over to ship B or is any leftover wasted, like now in SE4?