Will, I haven't used any of the positive papers. I've been pretty happy with scanning paper negatives, but not as much contact printing them. I give a post flash to bring up the shadow details, but I just end up with either detailed muddy or pitch black shadows with no detail. With the post flash I can get about five stops based on my my digital camera's histogram. I've also given some extra post-flashing to bring up shadows for really contrasty scenes with bright sun and deep shadows. Again, printing looks not so good but I can scan them and bring out the tones quite nicely. I should try contact printing on some different paper. I've had good results in the past, but my current paper (Arista FB) doesn't seem to like the process. Or at least I can't get it to.