So another week or so in, still great. One little niggle is I've found the Mio cannula can be a bit hit and miss as to how well it goes in, if at all. I've watched all the vids, know not to press to hard or pull out before the sticky has stuck, but twice now I've installed a new cannula, my BSL has crept up, I've bolus'ed, and it's kept going up. I've then changed to cannula and it's started working again. No air bubbles etc, just seems very delicate? This is with the flexible plastic cannula - has anyone experience with the stainless ones? Also, is it possible to get the cannula and some sort of insertion device seperately from the tubing? Seems and awful waste of plastic to have to keep replacing the tubing, or discard new tubing to safe totally resetting the cartridge. Actually there seems to be a whole heap of wasted plastic throwing away the Mio case - is there an alternative?