I've ordered .25 dynamic 700 and plan on using a portable 12v compressor surely the better ones have acceptable built in water striping, I dont see the point in buying a purpose built tool and having to spend heaps more customising it . My questions are does anyone know if the dynamic block and internals are made from all stainless and alloys that are non corrosive , if so then how much problem is some moisture in the air as from what I see no filters remove 100% anyway ? Also has anyone had problems with this set up directly attributed to water?