HD Extreme has some nice upgraded parts for the front RZR diffs. I bought their HD armature plate. This is way stronger than the stock one. They now have 2 options, strong and stronger. The one for the 800 or 900 XP has 5 or 10 tabs, and the 1000 XP has 6 or 12 tabs. I believe with that many tabs gripping the sprag carrier, you are less likely to crack the sprag. There is also more area for the magnet to grip.
I tested it out at Harlan and the diff worked great.
The stock one on top of the new one.