When using magnets on the boobs, use 4 of them 1 for each of the tops, 1 for each of the bottoms. Adjust the sphere zones so they sorta overlap just a little bit and only inthe boob area. Then, select each magnet itself, and go to the properties for it, and add in the Chest area. THat will let you adjust that area witht he magnet as well, and avoid that crinkling you see. IT will also let you get better motion fromt he magnets. If the magnet is too big for you to use easily when it loads, then just select the base (that little bar on the bottom) and scale it down a bit until you can deal witht eh size. Same for the sphere (obviously not the magnet itself).

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)