In message <x9GdnefcA6fRi4zdRVn-gw@adelphia.com>, ytrewq <ytrewq@poiu.com> writes

Are the machines unattended for days/weeks at a time?

Sometimes for the best part of a day.

Do you really care about <1 days production?

Care? Not neurotically. On a good day that's 15-16 units.  But if it's not hard to l let the machines have a stash, it seems worth the effort.

Thanks to all for help on this.