I wouldn't feel comfortable manipulating a process like that. Personally, if I can ever adopt, I will encourage my child to be themselves, whatever it may be. I don't think a kid she be pressured to do anything other than find themselves. I wish my family had done that. Sure, I was allowed to gender bending stuff like dress up as Ashley Olsen and renact scenes from their mystery show with my sister (yeah, I was a very weird little kid), but then I was pressured to play sports despite my objections. And the older I got, the more pressured I was to be a certain way and forced into a more rigid gender role. I knew that it was wrong for me to be me at a certain point. That's something no child should ever have to feel.
Therefore, I'm very much about kids being able to find who they are with as little influence as possible. I think there is no greater way to manipulate your childs destiny and personality than altering their genetics. For this reason, I would want no part in something like this. It's no better than pushing your kids into one gender role or shaping them through influence them at an early age. Hell, you aren't even giving them a chance to find themselves in any way. That's like a crime to me.
