The Explorator in my group is always tinkering with different equipment, trying to upgrade it's quality. That's fairly okay with me; since he enjoys doing it and the others wouldn't mind having better gear.
But the thing is...are there rules for that kinda stuff or do I have to houserule it?
For now I thought about having him roll Trade (Armourer) with a modification based on the quality he wants to reach: -10 for Good, -30 for Best. But how many successes? How much time should it cost? Do you think it'll break the game if I allow him to upgrade starship components?