Thought I would ask a quick follow up to this. By the same token would it be fair to say you can't retrain a z system because the start and end dates are always fixed ? When I retrained my Z1 and retested off the 'new' params - No change.

I think I saw something in the manual about retraining a live running Z system. Is this really advisable ? I would have thought it might be nice to do the retraining away from a live system and then perform some backtest to make sure all went smoothly.

Thanks
j