sounds cool, if you can tweek systems a roleplay element may be to announce the ‘ravens impulse engines are due an overhaul soon’ and make the less efficient for a week or two. Or ‘the Hyrda has new phaser capacitors’ and tweek the damage up a bit for the week they’re new. Only 5% change max either way, it would make the proper ships feel more real than a stock battle cruiser etc. I guess this would only be if it can be modified in the mission script.