Chip - you obviously have a lot of very valuable experience in wet systems, but very little experience in dry systems and so have given a very biased view point as moderator
Suggesting anyone using/trying a dry system is an idiot suggests you have a lack of understanding of the subject you are moderating and shows you as living in the dark ages with no grasp of modern technology or the future
Wet systems are archaic and most will eventually be replaced by dry systems for the following reasons:
The best way to fuel an engine today is by fuel injection - the big motor companies have invested millions in injectors and control systems to provide the best atomisation possibe. The design of any nitrous/fuel nozzle system has not and never will get anything like the fine atomisation, repeatability and consistancy of a fuel injector. As Trev says above upping the fuel pressure is not good however this is no longer required as modern fuel injectors work over such a hugh range. The 4 injectors on my 1200cc bike tick over happily without gas, yet will flow 480bhp of fuel just by increasing the injection pulses. (I do agree with your points on single point injection - my comments are purely for multi-point). Also this accurate precise fuelling means you can confidently run higher A:Fs than you would with a 'hit and miss mixture' wet system where you have to run rich to avoid problems (I run 12.5 to 13.0 :1 dry vs 12:1 wet). You can even run it closed loop
Furthermore when you activate the injectors the fuel hits the motor the on the next stroke - there is no delay which all wet systems have (a controller with a nitrous delay will address this but is fighting the effect and not the cause, and is of no use on systems which are repeatedly re-activated)
Having got rid of all the wet parts (lines, pumps, solenoids, distribution, nozzles etc) you can then inject the nitrous wherever you want - ideally upstream of the butterfly so you get the cooling effect through the venturi, another benefit over direct port injection being if the butterfly is shut you can't accidentally give the engine gas.
Another major probelm with wet systems running big power gains, especially on bikes, is that when shifting under ignition kill you get backfires. With a dry fuel injection system this is simply erradicated by cutting the fuel on the shift too - you can't do this on a wet system
I do not believe there is any supporting evidence that a wet system makes more power than a dry system, and in my experience because you can run a leaner mixture the dry system makes more power
Small power systems, carburated, with simple DIY installs for people who are only starting out with nitrous - then wet is ok
Any vehicle that runs fuel injection should run a dry system,
In fact I would argue that any carb'd vehicle should be converted to fuel injection if you are serious about you nitrous power anyway
I have converted mine to fuel injection and dry nitrous from all the problems I encountered running big gas (190bhp hit onto a 120bhp n/a engine). The dry system has erradicated all my problems that the inherent design of the wet system had. I have even just run flyers at 190mph with 130bhp of gas on a 120bhp motor for over 10 secs - something I would never had had the confidence to do with a wet system
Regards, Another Idiot
no offense ment - sorry Chip - but was possibly a little grated by us people who are amoung the few progressing nitrous technology (including you, Brad) being called idiots and a morons 
