My single biggest problem with the 670G was that while the sensor accuracy on the whole was good, commensurate with the Dexcom G5 (I wore both simultaneously for a week or so), it tend to run low overnight and just did not want to pick up my DP rise. No looping system can do any better than the data it gets from the sensor, so this was a chronic problem for which there was no fix. The Dexcom G6, by comparison, leaves both of them in the dust as far as accuracy is concerned. I don’t see MT’s CGM development, which has always lagged behind, catching up any time soon. Or ever. Guardian is the best system they’ve produced and it took them a long time to get there (the Enlites were kind of unusable). It’s clear that looping is the direction of the industry, and that means CGMS are critical. If your homegrown homegrown system is clunky, dated, and less accurate compared to the system built by a company that doesn’t do anything else, you’re just not going to stay competitive in that area.
I’ve been hopeful that MT would see the handwriting on the wall and open up to interoperability with Dexcom. There do seem to be some tentative moves in that direction, including discussions between MT and Nightwatch. And I note I haven’t heard much about that standalone Guardian-based CGM system MT was starting to market a while back…
Not to beat a dead horse, but it’s hard to see what it would be good for. It doesn’t integrate with any other pump system, or even any MT pump other than the 670. And as a head-to-head competitor for Dexcom it’s a non-starter by any measure. I assumed that was the idea when I first saw it on their site, but I’ve seen no mention of it here or on other D sites from anyone actually using it that way. “Hey, we’ve got something actually within a whisker of the G5, maybe we can make a go of it in their market.” Market response so far has been crickets AFAIK.
Bumping a very dead thread here, but I had a long phone call yesterday with my Medtronic rep as I’ve been having all of the sensor problems mentioned above. Her advice was to just do three calibrations a day at the same time, like 7:30, 12:00 and before bed – don’t wait for a reminder. Do them at times when it’s not changing rapidly, as others have noted. This is supposed to avoid the every-six-hours calibration mode, which has been ruining my sleep.
I can’t tell if it’s working as my two-day-old sensor stopped working this morning
