Definitely the PIS Advance which is stronger compared to freestyle. It only takes 15-20mins to fully empty your breast. I have just recently stopped breast feeding and wanting to sell off my PIS. It's still under warranty for another 2months to go. If you are keen, you can SMS or call me at 91081234
Definitely PIS as I also heard comments from my friends that Freestyle is not as strong and you will need double the time taken to fully empty the breast. By the way, I have one to let go at $400 still under warranty (21/2mths left) if you are keen. It is really good and its the 2nd set that I...