I have the spectra S2 and I’m having a hard time figuring out what settings work best for me. I start on 70 at a 5 once the milk starts flowing I change over to something else then once the milk stops I change it back to 70 until the milk flows again then back on a different number basically I go back and forth. Does anyone have any tips on how I can pump more? Also I just ordered new valves. Do I need to order the medela pump? Does it work better? I’m desperate here lol