How do the filters I use for VC paper come into play? Or are they not used at all?
Graded=no need of filter if not required to extend the exposure time. E.g for burning etc.
This is a great paper but somewhat thin and far from Museum or double weight. Don´t know the manuf. year I have but I´d say it is from late 80´s och early 90´s (if still in production then?).
Blacks are deep and still a white base I can´t say it is cold.
Even though you use fixed graded papers you can easily adjust the contrast. The easy option is to trix with the dilution of the developer but also try different development times, higher developer temperature, bleach in weak ferri, selenium toning etc.
To increase contrats, try over exposing somewhat and "snatch" from the developer at a fair contrast judged by vision. I´d say you can move at least two grades applying this method.
To lower contrast, try stand development. I.e agitate initiallly but when blacks are emerging just stop agitation temporarily and let the whites catch up. Developer exhausts quicker in black areas but keep going in white and contrast decrease.
Most efficient is to over expose and develop normally. The whites can then be bleached back in weak ferri (part A in Sepia toner for instance) to the extent you prefer. Due to overexposure, blacks keep in good healt even in bleach.
Try anything and you will be wiser!
Have a nice weekend!