I’ve been using the sure T infusion site with the needle instead of the cannula for the Medtronic 630G. Recently I’ve been having problems with the needle going in all the way. Not sure if it’s because I’m not putting it in as well as I used to or because of scar tissue. I’ve been looking at using the quick set with the cannula since it has an insertion device. I’ve never used a site with a cannula so I have no idea what to expect. Does it cause more or less scar tissue than just the needle? Are they comfortable to wear? I find when I even lean on the sure T it aches sometimes waking me up in the night. Just wondering about people’s preferences and experiences.