I get great swelling if I put them on while watching TV at night in bed, or if I think to put them on early in the AM then go back to sleep. The problem is that since I fall asleep, I never really know how much time I got in before they lost full suction. But, for me, laying flat on my back gives me the best swelling on top, just gravity I guess.
As far as time, yes, in the beginning, like first year, when I increased my pumping to several 2-3 hour sessions, any time I could I put my domes on, that is when I started getting great swelling and seeing growth. I read that others didn't pump that much, but for me it was necessary. Now, a couple of years later, sometimes I only pump an hour a day, and maintain a D cup from a B cup.
Sissy
As far as time, yes, in the beginning, like first year, when I increased my pumping to several 2-3 hour sessions, any time I could I put my domes on, that is when I started getting great swelling and seeing growth. I read that others didn't pump that much, but for me it was necessary. Now, a couple of years later, sometimes I only pump an hour a day, and maintain a D cup from a B cup.
Sissy