Smidge - 1 to 2 mmol/L "out" is actually well within tolerance. One of my two faulty sensors read between 160% and 200% above blood strip tests. Also, are you allowing for the time lag between blood and sensor? I've had a delay of between 5 minutes (which is what Abbott say is normal) and 20 minutes, some sensors being better than others. All of mine that have worked properly (8 out of 10) have had a lag from my control blood strip tests, but each seems to have a different lag time.
Sideburnt - I've just taken off my tenth sensor. No skin reaction from any of them. Is it worth asking Abbott if they can supply sensors with a different adhesive? My sensor application procedure does include two things that Abbott don't mention in the instructions -
1. Shave all the hairs from the intended sensor site.
2. Wash the site with soap and warm water, then use the supplied wipe etc.
Graeme