[heydurr]

Don't know if you've already tried this, but I've found that holding the cup once I've got suction and shaking it up and down and side to side / moving it in circular motions against the chest wall helps me with this

Uh oh, am I supposed to limit NB suction so that I can move the dome a little? My boobies turn red, I let out suction if they start to turn purple but a "good" attachment for me means it's snug enough that I can't move it without leaking suction...