Many ppl here like the RSJ reeds. If there's any difference between the filed and unfiled reeds, it's subtle at best. Across a sample set of dozens of boxes in each style, I've found them to be pretty much identical on average.
Search for a thread using keywords"Filed" and "Unfiled" in this reed forum, and you'll see a lot of other opinions on this matter.
Search for a thread using keywords"Filed" and "Unfiled" in this reed forum, and you'll see a lot of other opinions on this matter.