I'd have 'em bend over, unhook their old one (if they were wearing one), sling the new one around their chest while bent at the waist, snap the first few on the bottom to make sure that it was a proper band size, tell the lady to reach inside & point 'em forward, once they were in place, start snapping snap snap snap (the larger cups had more snaps.. up to about 25 eyehooks), and once completely hooked, have the lady stand up straight & then I'd start to "wiggle". I'd grab their shoulder straps & gently tug up & down, seeing if there was any.. uh.. overflow. Once I had wiggled everyone in place, then I'd have the lady "lift & separate!" by stretching her arms up as high as she could and then out to her sides to make sure that everything was comfortable, then arms straight down. If I didn't see any overflows & everything was comfortable, then we were good. If we had overflow or if something pinched, I'd see what I could do, including getting a different size. I tell ya, ladies who are naturally well endowed have the funniest sense of humor, but they loved it when I would tell 'em to "point 'em straight like headlights!". But, to be honest, putting one of these humungo bras on a lady kinda reminded me of saddling a horse. After that job, I was grateful for what I was given and the fact that I didn't need a specialty size!!