I based my investment on avg margins of around $6-7 (profit around $60-80m). This last 8 months have provided super-normal profits which is great for debt repayment but I see that as a bit of a bonus for NZR.

Lower debt = lower interest payments which will give better profits next year on same margins.
New Plant = better margins next year
Lower Kiwi = better margins

I'm happy to sit back and own this for the long term unless something significantly changes.