Bill,
I doubt if a light film of the degreaser on the outside of the cases would adversely affect subsequent reloading. If your method works for you, that's great, but I wouldn't use it myself since there are less expensive and less labor intensive ways that do a more thorough job.
Personally, I use the old NRA brass washing recipe from a 1957 article about cleaning .45acp cases, which also works on other calibers.
1 Pint water (I use distilled water)
1 cup white vinegar
1 tablespoon salt
1 teaspoon dish detergent (I use Dawn or D-Lead)
I fill a 1 Gallon jug about half full of fired brass, cover the brass with the NRA solution, cap with a water-tight lid, shake for a few seconds, let sit for a few minutes, shake again and then dump the brass and solution through a strainer. Then I rinse the brass thoroughly and let it dry before processing further.
At this point the brass is clean inside as well as outside and can be reloaded, but its not very pretty and SWMBO doesn't like to shoot ugly ammo, so I tumble it in a vibratory type tumbler with a little NuFinish added to the media.
Of course, clean & shiny ammo doesn't shoot any better just clean ammo and clean ammo doesn't shoot any better than dirty ammo, but when SWMBO is happy, I'm happy.