When Em was little she couldn't attach without the sheilds, they did help for a little while, until we found out why she wasn't gaining weight properly. I have never used one of those nipple shapers, but from the looks of it, it should suck the nipple like expressing, but I wonder if the pipette would have enough suction. If your client has a breast pump i would suggest getting her to draw the nipple out with the breast pump rather than buying another piece of baby apparatus