Yeah, that sounds about right, from what I think, after seeing quite some different torrent clients. Transmssion for instance has some options about PEX (peer exchange), DHT (dynamic has table, kind of a pseudo-tracker running on the transmission website), µtorrent etc, other clients offer many different options. Maybe a multitude of seeding clients brings a multitude of ways to connect to that thing...
...having said that; please keep seeding!