I'm glad to hear you found the article useful Eric!
As an alternative thought for you, do you actually need both formats on the same hard drive and in your catalog - do you go back to them that often? Other thought would be to archive one or other format (I've archived my proprietary files) into entirely separate storage as a much more protected backup.
I want the best of both worlds - I want smaller file sizes, no sidecars and updated on my working drive so I use DNG, but there are (very rare) occasions when I might want a proprietary raw file. That's fine, one of my disconnected backups is the proprietary raw file.
I want them to have matching names and folder structure, but I'm not worried about cataloguing them as I have the DNG's in my catalog, so my workflow is now:
1. Import with backup on - this is a temporary backup, just in case something goes wrong before I finish sorting.
2. Rename files - you might also pick out your favourites at this stage
3. Use the OS to copy the folder to my CR2 backup structure. Export as Original format to the other drive would do the same.
4. Right click > Convert to DNG with delete originals turned on swaps my CR2's in the catalog for the new DNG files - I don't need both formats in the catalog - why would I?
Just a thought!