I've noticed recently that the prices on 16GB ram bundles(8GBx2) have sunk like a rock, and I've contemplated upgrading. Currently between ~$160 and ~$260. NewEgg has a couple of different bundles in stock, most seem be 1.5V variety. It has been noted that while the current MBPs are rated for 1.35V they are accepting the 1.5V rated modules. Is there a difference in using ram rated to use a higher voltage than what the logic board is rated at?