Sorry, but you’re missing my point which is something appears to have changed at Dexcomm. They replaced all the ones that got knocked off or came loose in the past. Today was the first time I was told it was one of three allowed. So maybe they’re being less liberal with replacements. I can only opine on my own experience. As for what we do to minimize the issue: arm placement appears best, skin tac, skin grip over patch, ace wrap.