Not too sure about the idea of approaching the near edge of the deck. I was taught to aim for the far side. It tends to stop the waffling about that can occur in the very last stages as the power comes in. The guy who taught me said "imagine the aircraft's shadow on the deck and put the aircraft on it in one move."
The steep approach can lead to speed control problems at night or in poor viz, but does make the go round easier in the single engine case. I wasn't taught the Bristow system to start with and was uncomfortable with it when I first started using it. However experience showed me it was the better way to work, epecially with an inexperienced P2.
Zpringer is right about getting the lights to split and the rate of descent. I spent years shuttling and ended up using a combination of all sorts of approaches depending on the conditions.
VH