Like BearClaw, I too strip the fletch from the quill. Lots of people don't like this because they look at how loose and floppy the fletch is as it lies on the bench. They think that it will be like that when it's on the arrow. But think about this: when glued onto the arrow shaft, the arrow now replaces the quill. The fletch uses the arrow shaft whether you grind or strip.
I have found that the stripping works best when I run the feathers thru some steam before working them. Often the feathers get too dry and they have a problem with ripping out. The steam straightens the feather webbing nicely and re-hydrates the quill enough so that they strip more consistently.
I still have some feathers that split the quill when I strip, so I just grind those. If I ever shoot a plastic turkey decoy I am going to have to learn to split plastic vanes for my arrows, but until then NATURAL IS THE WAY TO GO!