I go your hubs. Those are really interesting and have unique subject. Also your format and length of hub is also good.
Therefore you will get good hubscore for sure. But normally it takes time to change the hubscore. As per my experience, it takes average 1 week to stable your hubscore.
When I write this comment you just joined 17 hours ago. So be patient, do not give up. HubPage give you better performance with the time (I mean traffic, money & good friends).
If you want to know more about HubScore and author score, read this hub.
I have noticed the same thing. I cannot figure out the method they use to rank stuff - I have 2 almost identical hubs (not content) but structure, with original writing on each, each is about the same length, and they are even on a directly related topic to each other. One hub has a ranking of 66, the other has a 50.
This is after about 2 months or more, so I know its stable. The layout is almost identical, including modules. To me this makes no sense, as they even both have about the same low level of traffic.
I would think that continuing to add hubs would eventually raise your score, but I am not sure they care as much about that as they do in your actual participation in the "community". Try searching for hubs you like and commenting on a bunch of them and see if your score improves. As with any venture, do not expect a few comments in a single day to do much, it takes time.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.