Somebody DEFINE the 50% refit rule please?!?

[Coal]

From what I understand, if the new design costs 50% more resource points than the original, then you can't refit it.

Now, what the original design would be, Im not sure. I think it's the current ship's design that is the original.
Example:
You have an Omega MkIII cruiser. You design a new MkIV class. I THINK the original would be the MkIII, and not the MkI.
(thinks a minute)
Yeah, the original would be the current ship design. If the original was the MkI of the class, you'd never be able to upgrade, since all future ship types would be way over 50% of the original.

(double checks post, gets confused, decides it's ok, hits submit)

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Rules? What rules?

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