My son has recently increased the amount he drinks after going through his growth spurt. While I'm at work I am able to pump exactly the same or am shy about 2 ounces. Also with pumping more, it has been taking longer to pump. I work 12 hour shifts and am away from my baby about 14-15 hours. I put 3-4 times while at work. I have the medela pump in style double pump. I feel like I am not getting all the milk out and would also like to pump in less time (more efficient pumping). What pumping techniques can I use to pump in less time and pump more.