I have an Omega D2 that I've configured with a Zone VI cold light head. The light is a (W-45 cold bluish). I followed Picker's recommendation and placed a cc40Y filter. He mentions the light produces a grade 4 if used without the filter. With the filter it can be used with vc paper--polycontrast papers can then be used to change the contrast.
My question is, with the cc40y filter alone does (without polycontrast filters) anyone know what grade it prints?