Does anyone have experience with these? I hate the feeling I get when I pump. I'm a 38 C cup and, in my opinion, think I have mildly sensitive nipples. I'm thinking the standard size shields might be too big for me. I currently use the Ameda purely yours electric dual breast pump. I was hoping to find a comfortable insert for the shields to make my experience more, well, comfortable! I was wondering if you think I should get the flexishields or the reducing insert or is there another option for me altogether?