Totally agree on a Paragon run - I still have to put on some rear shocks tho and get the Aussie Locker in.
Grinding the C's is somewhat a PITA. The goal is to cut the weld deep enough so you see this ever so faint hairline which is the separation between the C and the axle tube. But you dont want to go much deeper than this line or else you'll start cutting too deeply into the axle tube. It takes time and a lot of patience to get this line all the way around the tube. If you dont see this line all the way around the axle tube, then you havent completely cut the weld. And you should use the proper electrode to weld the C's back onto the cast iron cauz its cast. The weld is just on the "outside".