Black screened on me too, mid walkthrough. Paper backup saved us.

My buddy Dave did this for years on his satellite installs and swore the bite method was faster. One night he was up on a ladder in the rain and bit down wrong on a connector, and the wire jabbed him right in the gum. He ended up at urgent care with an infection and a swollen face for a week. His crew still gives him crap about it. Now he carries one of those little push-on crimpers on his belt and never touches a connector with his mouth again.

My sister went there and had great results. She said the initial consultation was thorough and they tailored the plan to her needs. She did the injections and also got a meal plan. She's kept the weight off for almost a year now. Worth checking out.