Thanks guys.

Right them, I'll cut just before I leave. Should I continue with the ferts for a few more days and then switch to just water about 7 days before the cut, and maybe no water for the last 3?
As for the heat, I will keep a small fan going during the dry but the temp will drop to below 60oC, will this be OK, I thought the damp may set in? One last thing, should I keep the outside extractor going a few hours a day during the dry?

Bazza