So I'm finally going to start designing my own ships and bases. I've been reading up on other design topics but I'm still confused about some things...
1. Lets say I design a frigate with 2 lasers, then later I want to change that design and remove the lasers to replace with rail guns. If the last design is still in use, how can I edit the design and have it so those ships properly retrofit to the new design with rail guns? Do I have to retire/scrap them and build the revised designs separately?
2. Just to confirm, will the AI automatically upgrade MY designs along with the default designs, or do I have to manually select and click 'Upgrade' on mine every time I research a new tech?
3. In terms of energy usage, is there any quick way to find out how much excess energy is needed to maintain full efficiency with weapons, hyperdrive, etc? I remember reading that you have to do the math manually when adding/removing reactors or your ships might only travel at 50% of max speed, etc.
4. And just as a general question, about how much do you personally take part in ship design? I've read some people only design destroyers and up, some only mining bases, and some design everything including passenger ships. Are there any major issues I should know about where custom designs are highly preferred? For example, I'm definitely going to start putting some defenses on my mining bases.