Comparatively, pentalobe screws are trivial to machine I'll have to take your word for that, because I don't know enough about screw and driver manufacturing t

Comparatively, pentalobe screws are trivial to machine I'll have to take your word for that, because I don't know enough about screw and driver manufacturing to comment. Tri-wing looks less likely to have any advantage other than discouraging disassembly. I'm sure Apple knew this wouldn't stop anybody very determined from working on a Mac, but it still causes a problem for someone like me. I don't fix hardware professionally, but I'm the person my friends usually come to when they have issues. I don't have a pentalobe or tri-wing screwdriver; I'd have to order them, and I would, but it would be a significant inconvenience. It's the attitude that bothers me. It feels as if Apple is trying to retain control over the device after the customer buys it. I'm your Joe Random, and I'm offended. I did not hear about someone swapping CPUs in any laptop lately The Thinkpad T530, to give an example still uses a ZIF socket. CPU replacement is on page 93 of the Hardware Maintenance Manual, which Lenovo makes freely available on its website. This should be a shining example to all.