First, make sure you turn off IK for the whole body before you conform clothing. IK can make weird things happen.

It took me awhile, but I made a version of the morphing bodysuit that would conform to a slightly modified version of the a character from the Girl Next Door pack. I planned on using this character a lot with Davo's bodysuits, so I knew that just making a preset would be the best. You just have to be ABSOLUTELY positive that you copied over the PBMs. My first attempt failed becaues I missed those partial morphs, since I rarely use them.