So, I'm helping a friend upgrade his 2011 12-core Mac Pro's ram. He has the initial 6 Gb and after telling him it might be possible to do 128, with the next OS upgrade, he got very excited. I already know about the OWC kits, but am curious about 2 things. First, I'm trying to convince him less will work, but can upgrade more if he wants to later. So that being said, would I (he) be able to use the 16 Gb x 4 kit (knowing that triple channel is optimal) and still be able to upgrade with the same manufacture to fill the remaining 4 slots, if necessary (meeting the memory matching specs) ? And secondly, if using Crucial or Kingston similar kits would work as well, anyone have experience with their modules up to the 96, 128 limits using other than OWC? Just wanting to double (and triple) check, since it's not my money. Thanks for any insight!