I was pumping and I guess I got too much suction going or something because I heard a pop and lost suction. I duck taped it which worked for a while but then they cracked again to the point of no repair and I can't get the larges on unless I prepump with mediums so I quit noogling until I get a replacement for my cracked dome. I emailed Lucy and since I only bought my mediums in June it's under warranty and she's got a new medium coming my way! So when it gets here I'll start up again but the good news is I don't seem to have lost much if any growth!