I recently shattered my iPhone 5. I found out that my store does the $149 screen repair. I heard that the machine that does it simply scrapes off the old digitizer and puts a new one on and that sometimes the calibration fails. If the calibration fails, you immediately have to pay for a refurb phone($229 vs $149). I was wondering if anyone who has had their screen repaired at the apple store has had the calibration fail? I don't want to take the risk if its highly likely that I will be buying another phone.