MikeinBuffalo, My only experience with FFS was when I was asked to overhaul a couple of automatic shifting bikes by my daughter's mother-in-law...I was stuck.
Long story short, I was able to make one working bike out of the pair. Freewheeling noise wasn't intrusive by any means and after some trial and error everything worked quite well. The bikes were made between the early and mid '90s and I'm fairly sure that at least the crank set was Shimano, but it was many years ago.
Brad