The other big difference I've noticed is now when he alerts to a low or high, instead of giving one or two signals, he has become more insistent and enthusiastic, giving numerous paw swipes just to make sure I've got the message loud and clear!
There has also been an increase in the number of spontaneous high and low alerts offered. There were several times during the week when he detected Jason was either hypo and hyper and alerted me accordingly. And one of these took place when we where at my mum's house. This is probably the first time he has had to do any alerting outside of our home (the car being an exception), so it's great to see he's got his mind on the job when we're out too.
Also, I have recently introduced samples taken when Jason is hypoglycemic, instead of just when he's low. I'd noticed that Bailey would pick up the low numbers we'd used in training with bulls eye accuracy (in the low 4's) but would only reluctantly offer alerts when prompted if Jason's blood sugars fall below 4 mmol/L. So now I have introduced samples in the 3's and lower.
From what I can find out about how diabetic alert dogs detect different chemicals on the breath, it seems they recognise all ranges of low blood sugars as the same. But I do wonder if there are differences in what he's smelling as he is now alerting to the lower ranges that he wasn't doing before I introduced these samples.....Regardless, my efforts to produce one very tenacious little tattletale are paying off...