Curious if anyone has tried this. I'm planning on buying the new MBP 14 base model but was going to get it through someone other than apple. (Probably Amazon as I get 5% back). I want the bigger power brick that comes with the 10 core but can't order it that way through amazon. Anyone know if I can swap an unused brick at the apple store and pay the 20 bucks that it would cost to custom order it that way?