I've got my main characters that I love, my BH and SW. But I'm wanting to make a few alts to grind out the crafting skills (and basically just farm slicing). I've played all 4 classes to the fleet before, and only continued on the BH and SW. I'd like to get through Dromund Kaas so my crafting alt would have the ship droid and the first companion. So what class is going to pull this off the fastest?