Over the years I've used color film, B&W film, lith film, paper negatives and Harman DPP. But I'm mostly a paper negative shooter with pinhole. I both scan and convert to a positive image in PS and also contact print onto silver paper. I preflash the paper negatives and use grade 2 RC to control contrast, while other people use yellow filters with MG paper.

I don't do much Harman DPP in pinhole these days, mainly due to the extremely slow speed and resulting long exposures. I prefer to shoot Harman with glass lenses. However, I do have an 8x10 box camera that I "optimized" for Harman DPP by using a larger-than-optimal sized pinhole, to gain a bit of speed at the expense of overall sharpness.

~Joe