I'm having a revision of my 12 year old saline unders that have bottomed out. Switching to silicone & wondering what if any differences I'll notice. Does switching make recovery any different? Do they feel lighter? I was hesitant to switch at first but I'm very slender & don't have a lot of breast tissue so I'm hoping there is enough of a difference where the extra $ for them is worth it. Any info would be appreciated!!