Hi, dont worry about small discrepancies in meter readings they work within a + - 20% error margin so if your levels are usually in the 5's and low 6's then any reading could be out by up to 1 mmoll/L either way, and no two reading will ever be exactly the same even if taken from the same blood sample at the same time, again the home testing meters are just not that actuate. They just give you a good indication of your bg level.
Mid 5's to mid 6's after eating are well into non diabetic territory anyway so why stress yourself? Just be thankful that you are well controlled at present :thumbup: