[valerie anne]

With regard to "latching on", I find that on the high suction settings, the pumps will easily hang on to my nipples throughout the suction cycle, especially if I support them by slipping them into the cups of my bra.

At first they may not grasp me properly and then they make a "glooping" noise. But once my nipples extend, then the pumps latch on hard and it's a job to pull them off me. A little lubricant, like baby oil, can make a lot of difference to the latch and the ease of pumping.