The issue I see with picking a good spray pattern is what pressure do you test them at, my Bosch 1000's start off at 35psi base and run around 70psi on boost obviously this will change the droplet size and cone shape. Also, where would you want the mist aiming in the port?
I must admit though, my plugs are lasting much longer with the 1000's over the last tune with the Deka 610's but I did change quite a few other parts at the same time.
Artz, I think its a great idea, I just hope the Neo rail lines up ok.