Hmm, I tried quantization in single player and it gave some kind of "Area not transportable" message. Can anyone confirm it works with spawners? Maybe I did something else wrong, but they worked when the spawner wasn't in the field.
Will definitely look into the AE option though. Thanks.
Oh, I forgot to mention the Autospawner not being an option either - but other uses have reported success, so I have hope for this AE method.