Get it while you can...SO-132 was discontinued this year....actually, it was discontinued last year as well, but coincidnetally came back to life after that PT issue came out.....at any rate, if you can find some, it will be close to $100 for a box of 25 sheets 8x10. I know a local camera shop in my area has had an 8x10 box in their fridge for some time now...I have used this film, and still do--I stockpiled it sorta....here's the Kodak tech sheet link:(posted 8198 days ago)http://www.kodak.com/global/en/professional/support/techPubs/f11/f11.s html
If you use this material, follow the instructions closely for pricessing. It needs to be toned for long term storage. It's an ortho film, but very slow. If you were using by contact, the speed is that of Azo. If you enlarge, typically it's a little faster more like a slow enlarging paper. Ctein's article is an interesting method, as far as contrast control goes...but to be honest with you, the film is a bad choice for really contrasty originals....
I sent him an email after the magazine came out asking why they were covering a film that was discontinued & he said they didn't realize it at the time, since the article was written several months prior...anyways, for duping up to 8x10 in one step, it was probably your only choice other than the one mentioned above, using Ektachrome. Good luck either way, and if you want the name of the local store, drop me a line.