Hey, that's the technique I use too!... I was wondering if it was kosher, I wasn't trained that way, I sort of developed it on my own. I was trained to "pare" the edge of the jacket, but I tend to damage more insulation that way, even though I would've never convinced Mr. Hixson of it!
As far as shorts due to NM Connectors, can't say I've ever run into the problem... But I can see how an overzealous trigger finger with a screwgun could easily set up this disaster.
