This poseball set was created for two female avis to use, and is modify/trans so that you can adjust the poseball positions to compensate for different heights. Even the scripts inside the poseballs are modifiable, so if you are comfortable with tinkering with the script you can go in and edit the offset and rotation, too.
You can find this poseball set, other male+female pose sets, and singles posepacks at our main store on Juicy sim (Juicy 203, 153, 25).
http://melasupdates.wordpress.com/2008/07/27/new-poseball-set-bff/