Hi All: I have been using a Paradign Revel since September 2011, and started (and am still using) the Mio Infusion Set. I use the 6mm cannula, 23' set. I like to wear my pump in my "upper butt" so it doesn't snag on clothing, or the boxes of books I cart around every day (I'm a librarian). Recently, I've noticed that when I change the site to my upper butt, the cannula kinks and I won't know there is a problem until hours and ketones later. I have a Quick Serter and a few sample sets. Would anyone recommend switching, and if so, why? Thanks!