Hi guys. This is my 1st replacement I just got yesterday. The previous one was returned because it had the IR on the LG. The replacement I have is still the LG but so far has no issues. Right now, there is a issue with my right speaker. Whenever I move or press softly the speakers my rMBP, there is always this cute chime ticking sound. I plan to call and ask for a replacement again but has my 14 days return policy expired? or it rolls back to 0 days for every replacement? OH! And is it true that the 2.3 gives 2 hours more battery life than the 2.6 and 2.7?