The new model of development includes frequent delivery of the source code with the latest updates.
Time sensitive First Class would be less likely to make use of a service with less frequent delivery.
These stores are not like the large suburban supermarkets, in that they lack the refrigeration storage capacity for less frequent deliveries.
If more frequent deliveries (e.g. by a contractor to a site) are required this should not be regarded as occasional.
Indeed it could be a disadvantage for them, because they will probably have to invest in new systems, hold stocks themselves and make frequent small deliveries.
Of all the excuses for less frequent and less prompt deliveries, saving the planet is the best yet.
Costs would be lower by dint of lower wages and/or less frequent delivery.
It is also possible to gain some of these benefits by 'faking' frequent deliveries at the supply site.
So now the question is how to achieve this more frequent delivery.
The frequent deliveries will provide a smoother sequence of smaller resupply signals.