tdgeek:
There are two types of voters.
1. The voter that ALWAYS votes National or LABOUR. Always. These voters add nothing to the election. Nothing, its a null vote.
2. Floating. These can be generally National voters (like me) but vote Labour as Nats do nothing, or Labs have spunk and are get ahead. Or Nats have boring stability, and Labs are inexperienced. These are the only voters that keep Governments, or change them.
IIRC you stated that you can vote years ahead? Your vote doesnt matter.
Not sure how 1) is a null vote, all votes cast legally are valid.
2) I think you mean swing voters :)
It's the target for any party.