Dropping Pump Sessions at Work & Maintaining Evening Supply

henrytviii

I read on another thread that once you hit a certain point you can start dropping pump sessions at work and still maintain supply for evenings.  Is this correct and when is that point?  For background I am out of the house from 11:30am until after LO goes to bed, his first wake-up is between 10 and 11, and he's still up at least twice at night, sometimes more.  I've dropped to 2 pump sessions at work and would like to drop to 1 by March when my job gets really hectic.  He'd be 8.5 months at that point.  Since I am home in the morning I can nurse at least 2x each morning as well as the nightime feedings.