anybody running this differential

is anyone running the 913A572 Eaton Detroit Locker differential in their 8 3/4 rearend. I called Dr. Diff on the clutch type suregrip and he said he will be out of them until sometime next year and that he had this one available. It is a little more expensive but just wanted to know if it was better and what the opinions were from someone who has it. Thanks,Bill