This question has been asked too many times, the only thing I am going to suggest is looking into some popular torrents here and getting the exact same files from another torrent tracker to seed back here. I can't give you the address url, but I can tell you to google "Nyaa torrent tracker"
It has no ratio system, so you can download all you like without worrying about ratio
(don't be a jerk though, seed back some at the least - personally, I always get about a 3-5 ratio before I stop seeding)
Once you have what you are sure are identical files, you can then seed them here by downloading the .torrent here and telling it to seed from the directory you previously saved to instead of downloading anew, however, you can only do this once you are out of warned status so.. crap, I only just thought of that... Well, once you are unwarned its a good ratio keeper-upper