SS,
Just some piece of advice I got from a very senior training captain: CYA (Cover Your Ass)
Make sure you've checked everything, so you don't get caught with your pants down.
Also, never lie to your pax, if needed, bend the truth a little. Furthermore, If you consider the weather to be marginal, take as much fuel as you like. You can never have too much fuel ! (Only when you're on fire)
Last point: Give your F/O's some leeway, you might actually learn something from them, as they learn from you.