I got the KM EBB2, not by using skill, but by playing every day. I got a Turtle ship, not by skill, but by playing 20 days (and then a Bayern for 6 days). How is that skill in ANY way? Show me?
Back the the suggestion, no. The PBBs already seem good enough to me.
EDIT: and I will say this, it really didn't take too long to get. Just 30 minutes to an hour a day.