How to avoid blisters on outside corners with Kerdi or Kerdi band

[Kirk Grodske]

I found a few blisters to correct on my last installation. How do you guys avoid that. I have read before that some like a sharp corner and others, a rounded. How rounded?

[Mike2]

Radius (round over) the sharp corner before wrapping the Kerdi. Makes all the difference in the world. A 3/8" to 1/2" radius is ideal but any amount will help.