It is pretty simple answer, anyone who ever had any surgery will tell you scar tissue is and can feel like a brick, if not worked or adjusted it can be permanent and in some cases spread a bit, also in surgery the nerves get cut as do muscle, this can cause loss of sensation and sensitivity, if the implant is behind the muscle there much less of natural motion to zero, so in a nut shell Yes having implants is a distinct advantage I personally refuse to tf implants.