Looks like I just connected with a bad customer service rep in July when I made my initial complaint. The guy I spoke with today was incredibly attentive and was very interested in getting the five additional failed silhouettes I have in my possession (not including the one from last night that left me at 450 mg/dl.) He also got my remaining boxes replaced with a different style of infusion set, a sof-set, which I haven't used for a long time but remember well. It is surprising to me how different the calls went, today the guy was positive and attentive, in July it was accusing and abrasive. The July guy told me that no problem existed and it was random as far as he was concerned, after twelve of the exact same failure from different lot numbers I'm relieved it is finally getting some attention. I'm reluctantly liking MM again, I'll post again when something else happens.