I combine ballooning with other pe, and I do it to prepare for having sex with a woman. I've learned a lot from Dr. Lin. I would be scared to wait a week between ejacs when trying to make a baby because I believe the sperm quality is higher when fresh. Just a guess. Ive learned something here. I have the Lin book but didn't notice this at all! Like using Bathmate to get into a similar state, we could use this to get into the right state for SSJ and head ballooning.