It always irked me that the one thing we COULDN'T upgrade on our ships was fuel tanks other thank adding extra were fuel tanks. Even if it was just extra ton of fuel per rank. Yeah, yeah engineering 'fixes' this but still I wish we could have done that in vanilla, I mean, you see that grade on it and you would think, can't wait to find that A grade fuel tank!, yet search fruitlessly when you don't know about eddb, I know I know heavens forbid a player doesn't want to use that and just flies around looking around themselves.