I can only think of a couple of instances where pincer would have been a sure thing kill,
unfortunately one of them was against Charine (and she knew it too.)

The reason that I preferred to disembowel was because a pincer would often not lag them
enough to allow me to get the kill. I geared almost exclusively for -AC, which meant that
I had a pretty low damroll for a Rager, usually between 30-40, sometimes low 50's if I had
a poncho. Even with the two or three rounds I could lag someone with a successful late
pincer it would often not be enough for me to deal out enough damage to kill them. I'd pincer....
they'd flee and quaff.