I am using 3 m5 nozzles from devilsown. I think multiple smaller nozzles shoot a finer mist then one big one, but the big singles still work well. I run straight meth, some prefer 70/30, some use windshield washer fluid which is about 36/64. Depends what you want. Snow only makes theirs 51/49 because that's the legal limit for shipping before it's considered hazardous or flammable material.

 

Yes Believe they rate them at 100 psi.