I used to use Pro-cure and I still do at times but I have found myself favoring Pautzke's fire cure more cause I feel I get better condition eggs.
Curing two skeins from the same chum one in Pro Cure UV and one with Pautzke fire cure, the Pro cure took more time to get juices out and the smell wasn't as strong to my nose when I opened it. The Pautzke Fire cure made more but that was cause the skein I did it with was slightly bigger but not by a signifigant amount, but the amount of juices was considerably more almost 30-40% more and it has that nice shrimpy smell which I actually like for some weird reason.

It's hard to say which catches more but I do feel the Pautzke has gotten me into more fish over the 3 years since I have switched over and the Pautzke seems to be easier to wash off my fingers at the end of the day while the Procure stains much more as my friend asked if I had a pen explode between my fingers, can I give a reasonable explination as to why I feel the Pautzke cure works better? Not really, friends who have used my roe have gotten more fish but that might be coinsidence and same for myself as well.