I don't give a shit what Apple thinks, and wouldn't bother seeking their opinion. I've replaced probably every part in an old MacBook Air I have and the non-App

I don't give a shit what Apple thinks, and wouldn't bother seeking their opinion. I've replaced probably every part in an old MacBook Air I have and the non-Apple online documentation has been really good. All that being said, thermal paste is pretty poisonous, I'd never even considered someone would just splodge it on with their finger.