Well, that assumes that the Heroic bosses will give you the plans that you need. I have been beating two of the bosses for 4 days trying to get relic and cloak plans. Since I keep getting everything but those, I end up using my stamina to auto level. Not a bad thing but frustrating nonetheless. StarHunter is right. There are definitely times when you get stalled out. Can't get the plans you need because of the randomness of the drops. Can't move forward in the quests because the boss you are trying to beat is 50K bigger than you are. Can't get a successful voyage because now that they changed Caribbean Pirates (which I think was a GOOD change) there are less chances of getting another map if yours gets taken away.