Miniaturization is expressed as an increase in total ship space instead of as a decrease in component size so that rounding is handled fairly. Depending on how you rounded, lots of components wouldn't change size at all, others would change more than a strict percentage would indicate.

While theoretically miniaturization effectively increases the size of the ship, the actuality of it is that it decreases the size of the components. It is easy to see why Gamefan 1981 had to basically start from scratch with his ship - he had to replace the ship space data to reflect the new capacity due to the backwards application of miniaturization. This could likely be fixed by coding a forced refresh of the base data upon entering retrofitting mode, without having to recode the effect of miniaturization to properly reflect "reality" (however that may apply to a science fiction game), but it seems to me that a more object-oriented approach based on realism might have been better used from the beginning.

This same problem is exhibited in the registration process, as I was forced to alter my real name when I registered, to reflect the limitation of only using the characters A-Z and a-z, instead of the reality of a world where names may include diacritics such as the é which appears at the end of my actual last name.