BTW, Ilford MGIV or indeed any paper can be reversal processed to give some very nice reversal prints or paper positives in-camera. In this case, you do lose a lot of speed though. You don't need a special reversal paper.
It is well known that all B&W films can be processed to give reversal images with a special kit made by Kodak and a number of other companies. It is less well known that the same process will work with paper, but with a loss in speed and a need to tweak the developers a tad to get the right contrast.
There are several threads devoted to this on APUG.
Ooooohhhhh, very interesting. Too bad you lose speed...I don't know how much more speed I can stand to lose.
My shooting this morning went very good. I have many excellent examples of negatives. This discussion caused me to re-evaluate my shooting exposures and development combo, and I think I am getting a better handle on the ability to control contrast via exposure/development with the paper negative.
I have learned a lot in this thread. Thanks to all who have contributed.