[UserNameGoesHere]

That works to an extent. At some point you'll hit an upper limit on just what you can do with your worst songs and/or you'll just get tired of them for a while.

I say, you can try that until that begins to happen, and then you can try, oh, figuring out what level of song you can full-combo (as a full combo gives you so many more points than a single miss it's not funny), and trying to full-combo all of those, for better scoring.

Also, it won't hurt to look at your very best and try to AAA those. The only ones you really will have "locked" in will be ones that you AAA anyway, which will lock in at 1. Everything else can get worse (for you) as others do better.

Also you can try playing new songs as they come out to help your rank, but it won't help much since not a lot of people have played them yet, and as more play them you may find your rank starts getting a lot worse and you'll have to try again.

That's about my strategy.