Well, it isn't hard to do...
I just used Mother's mag polish and a soft rag, rubbed everything by hand and followed the directions. After I was done I used gun scrubber to make sure nothing got left inside the action. I did remove the cylinder but it wasn't mandatory.
If you don't think you are up to it you shouldn't do it.
Don't let everyone scare you though.
In answer to your original question, if it is bead blasted or appears frosted (ie. the top of the sight plane, the trigger or the hammer) leave it alone.