Love SR2: Reboot, what skills help the most though?

I just got Reboot, but I had the english DVD with Space Rangers 1+2 for a few years. Reboot breathes new life into the game and I bought SR2: Complete just because I know Stardock takes care of me when I buy stuff from them.

So, I haven't played the game in over a year, and first thing I notice is the new planetary battle and text-quest modes. Love that! I love the RTS portion of the game, and I never really had a chance to play the text quests much, so this is a welcome addition. But in normal mode, I'm trying to experiment on what skills benefit me the most. So far I think accuracy and charisma is the two skills I get the most benefit from, better shooting and more pay on missions. I'm still not sure what I plan on doing exactly, I'm like half-a$$ trading while flying around, and if I see dominators I store all I got and pick up scrap. Still trying to figure what I'm best at, but I enjoy it all enough I'm happy being a generalist. I started as a Human Fighter, decent kit.

One gameplay tip I remember from long ago, always carry a Cistern or two of fuel. I ran out of jump fuel in a system defense and the Dominators won. Needless to say I had no escape and died. Better than a cistern the starter fuel tank weighing 20 tons, upgraded it for 250cr and it holds at least 25 fuel, more effecient than a Cistern per ton.