DRB:
Ive been reading for hours, days and cant find the difference between these two models?
(HP-C & HP-CS) would someone please educate me? Thanks
The main difference is in the nozzle/needel design.
The Eclipse HP-CS is in the Iwata economic line that uses a cone nozzle of 0.35 or 0.5 mm diameter. It is my main airbrush and I believe that it strikes the right balance between fine paint finish, detail and easy cleaning for modeler.
The HP-C has been replaced by the HP-C Plus and is their High Performance line that has a screw-on steel nozzle of 0.2 or 0.3 mm diameter. The Telfon needle packing is supposed to make it more suitable for solvent based paint used by auto/motorcycle finishers. I do not have one and cannot tell you how it feels and works in my hand. I suspect that it offer finer detail using the 0.2 mm nozzle and is more durable in heavy use.
If interested, you can see an interesting article on the HP-B and its construction.