| I sympathise Shabbie.
My doctors are also concerned about my low HBA1c. They say that they would like it to be nearer 6%(!!) They too measure good control as being less thatn 7%. and think I must be overcontrolling or testing but I only test 4-6 times a day.
Mines been 5-5.2% consistently since I was diagnosed just over 2 years ago. I put it down to possibly producing some of my own insulin still and also to exercise. Like you I am a 1.5. and I'm not certain that we have the same control difficulties, at least in the early years,as type 1 There are too few of us and not much research so no-one has actually described the course of the disease.
[Unlike you I do have some hypos but they are recognisable, predictable (after exercise) and at the moment easily remedied.They are the main reason that I'm getting a pump so I can reduce or eliminate basal during exercise]
Should you aim for a higher HBA1c? How would you do it? How do you make sure that your overall BS rise is restricted to a few percentage points.?
I've thought about this from a personal point of view and I don't think its as easy as doctors imply. I know that if I miss out exercise then I have a higher pre meal and fasting BS. If I reduce the insulin for mealtimes or eat less healthily I have higher post prandial BS. Together these would translate very quickly into a much higher HBA1c. It seems to be counter intuitive to do this and I would find it extremely difficult mentally to try to.  | 
