System Design - What works best?
 

What are the most criticals aspects of a well designed mist injection system?
1. nozzle placement pre or post turbo? I've heard post turbo to avoid damage to the blades, but I've heard from a guy who installed the nozzle pre turbo over three years ago and he says absolutely no problems with the blades. Apparently, pre turbo is supposed to provide better vaporization of the atomized water particles.
2. Is the nozzle orifice diameter more important than pump pressure, or is it the other way around?
3. What's the minimum boost required to take advantage of the mist system?
4. Are there different design methods which enable the water pump to respond to varying boost levels?

I'm sure I've missed a few.