Hello all. Bought a new 2012 i7 2.3 a few months back. Been wanting to upgrade by installing a SSD. Now I'm thinking I was a bit hasty. I ordered the iFix kit, since it came with the extra toolkit (already have the screwdrivers etc. from the OWC kit I used to upgrade my MBP). It's only after reading through these forums that I now realise that the HDD could be in the top or bottom bay. I didn't realise that one might need to order a specific kit, depending on whether its top or bottom? Is that true? Does the adapter for the one not fit properly for the other? Any clarify would be appreciated!