That’s good news. It also suggests that this is a relatively new product, since there was nothing by that name available when I requested my sample. Those neg details look very nice — which printer/ink combo is this?
To me, the difference in base densities is of minor significance. Exposure times are determined using the film being used. Others may require an adjustment but it won’t be much. The UV density of Pictorico Ultra (TPS) as measured on my X-rite 361T, which is the highest of any film I’ve tested, is ~0.15, or 1/2 stop. Pictorico Premium (TPU) is 0.10, or 1/3 stop, if I remember correctly. An old sample of InkPress film is 0.09; and The Fixxons Screen Positive film that I have is 0.07. In other words, the range of FB density among these films is only about 1/4 of a stop. If your exposure on Pictorico Ultra is 1000 units, then on Fixxons Screen Positive it would theoretically be 841 units. The Fixxons film that you have is probably a bit higher in FB due to the additional ink-load capacity, so the difference would be even less.
Personally though, I think I’ll stick with Pictorico since it has been a reliable product in my experience, which is something I can’t say about other films I have used in the past. And with the astronomical increase in the price of palladium over the last couple of years (which I was not aware of until a few days ago — thanks Jon!) it seems to me a risky way of trying to save a few bucks, but that is a calculation we all must do for ourselves based on our own particular ways of working. I can certainly see where using Fixxons film makes sense for folks who work in processes where the film is a significant fraction of the total cost of printing.
Fortunately for me, I’ve got enough palladium to last 2-3 more years, otherwise I’d have no choice but to be done with it! And since I seem to have solved my black spot problem by adopting the Malde-Ware chemistry I will hopefully be putting fewer prints into the reject box.
I’ll ask for a sample of this new Fixxons film and report back when I have hopefully verified your results.