I've still gotten blisters because of the [words=http://TLCTugger.com/MOS]VLC[/words]. on my last stretch, while working and sitting here doing my thing, I got the biggest blister I've ever had. I actually had two blisters inside the other one. It was painful for about a week.
I'm trying to use the [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]SG[/words] the way it was intended with some bandage wrapping and velcro, but my head keeps slipping through. Maybe my skin is too flexible/stretchy after using the [words=http://TLCTugger.com/MOS]VLC[/words] for months.
I'm at the point where it feels like any added tension is going to cause another blister, and any less tension isn't doing anything.