If you are still using the AT2 meter, then those readings are nothing to be concerned about. Because the AT2 meter reads higher than a human meter, you are bound to get some blue readings. As long as those blues don't start consistently going above 120/125 I wouldn't be concerned. BG fluctuates and if kitty is not eating overnight, that could be the reason behind the higher AMPS readings. Most of Big Cat's blue readings could very well be green when you take meter variance into consideration. Big Cat is looking great! Congratulations!