Speak to your PCX about the implants they will tell you all the details about them (theres not that much info on the net)
MYA use the Allergan CUI implants, but you can have the Allergan – AKA McGhan range too. The responsive & soft touch both come with life time guarentees.
There has been a few posts on here over the months about the difference in implants, id just go stight to your PC they are there to answer all these sort of questions.