Jim, I just played with that efke direct positive paper, you might have a look. It is quite thin, what I tried. Not too curly, and reasonably smooth surface. I guess waht I got could be called semimatte. Develops well in standard chems but definitely needs a red safelight. Haven't checked preflashing effect and toning and all that, but it might be a good direct capture paper for you ULFers. Controlling the contrats is still a bit of a mystery to me so far, one plays with exposure versus developing, of course.