Yes ... but as for me I hand express. To prevent engorgement and allow the breastmilk to continue to produce. The breasts will automatically produce more breastmilk when you clear(latch/pump/hand express) often.
I did To continuously increase supply
Yes for me. Otherwise would engorge
Yes! Otherwise it will leaks too
Yes of course
Yes . If u wanna reduce, then u gotto slowly increase the time in between pumps