We do the above, but do not have it remove original each time. If you just import the last one and then move on you can delete all of them at the end of your scanning. My wife who does the scanning does this just so she can see how many files she does a day - keeps a runnning tally of how many hundreds of scans she does and how many total old charts have been scanned in. This is just for her edification and so she can complain to me about how much scanning she did (LOL).
One thing I suggest is to print out one of your scans - an office I work with scans at lowest resolution and such - their print outs are almost impossible to read later on. Play with your settings - we use scansnap, normal quality, high compression, duplex (I believe does color with high compression) and save to PDF. This gives us a crisp good scan, good readability and decent size. My wife will literally sit down and do a few hundred at a time in nothing flat.
