I agree with Barb. A symphony would be much more effective at stimulating your supply. We comp feed because of diagnosed low supply and it may work to give formula top ups and store the ebm for 1 feed each day after a bf.
I found that giving the ebm from the previous pumping session good so DD didn't have to wait for me to pump.
Our LC was my rock in my bf journey and 9 months later she still calls monthly to check in with us.
Eta- would donated ebm be an option?
My DD was also a sleepy baby and we had to wake her every 3 hours to feed her so shed get the calories in to bf and to thrive. It worked :-)