The BP to the neck (actually lightly touching the neck where it meets with the upper chest), with the extra wide grip,is not for everyone. It's meant for light to moderate weight on the bar, not any heavy stuff. Some can be subjected to shoulder problems, with this movements, if not taking a proper warm-up and using too heavy a weight. Gironda stress form over heavy resistence (weight). A 'V' bar is very well adapted for chinning also. The one shown with Scott is a little shorted than some I've seen & used before.
When done right, a set of sissy squats are man killers. It's the full stretch that most guy's have a hard time with at first. The butt touches the heels every rep and balance can also be a problem. Can get a burn that is unreal. I've heard that's it's called sissy squats because, when preformed the correct way, it makes sissy's out of the most heavy duty squater's around.
It can be misleading when most of Gironda's exercise are listed in a workout program. Not so much the regular exercises used but the way their done. A little twist here, a little turn there, the way the grip is held, how hard you hold the grip, the way you draw the knees up when doing flat bench work, overhead DB pressing,laterial raises, select calf & some times abs work, etc, etc, etc. You almost have to have someone who really knows the insides and outs of his methods to guide you through a workout, to get the true feel of the way Gironda wanted the movement to work a muscle.
I never cared much about BB and more with heavy lifting myself, but Gironda was one of a kind. A man deserving respect in the field of BB'ing, past or present. I've met a few gyuy's who use to hang at his Ventura Blvd gym. Good Luck.