It is 100% to get reserves available earlier in the day. Example:

Day 1 current system: SC from 10am to 10PM. Not used.
Day 2: SC 8AM to 8PM.


Day 1 New System: SC from 10am to 7PM. Not used.
Day 2: SC: 5AM to 2PM.

It shifts our availability which is especially great for covering early reports during IROPS, overnight sickouts, etc.

I'm not suggesting this is a BAD thing. In fact, it increases operational reliability. If it allows guys to get home earlier thats a plus.