I sorta want the dig site for more than just stopping the BUP, I want what could be there. The BUP are being jackasses, we stop them and show them that trying to undermine us and the other factions is a bad idea. Invite the TDD and/or Academy along to the site to boost their relations, and we keep the BUP busy until we jump so they can't try another coup de tat, which is the main reason I say we charge now.
And what Cript said about being able to hold the charge also applies, we can charge up then wait if we have the time.
I still say we jump before the Ditto becomes a problem and avoid it entirely. We do not need to deal with it, it's too dangerous, and it offers little reward. We're not here to help the planets we go to, we're here to survive, and going against it is a suicide mission. Once again, Velik will not join you to fight the thing, and, if things look bad, he will order the ship to jump with or without the other commanders.
Additionally, I don't give a flying rattata's ass if the BUP get pissed off at us, they picked the fight, now they have to back off or face being opposed by the commanders at every turn. At this point, Velik is (passively) against the BUP, if they keep trying to sabotage the other factions and us, they're going down. That's the same for all the factions.
My vote still stands on the Dig Site, then Aldo, then training sim, followed by a jump unless something pressing comes up. You want the sim now, do it on your own, I go off on my own to do research and get quite a bit out of it, so someone else doing the same shouldn't be a problem.