That's pretty cool, and I didn't need to go past those shims when I worked on mine.
I'm glad that I didn't need to change any of the sprockets, either!
Again, the appeal with these, firstly, is that they are available French-threaded.
For owners of earlier French bikes with original hubs, the French threading can be a pain.
Of course some folks put English freewheels on French-threaded hubs, and many do get away with it.
The pictured Cyclo64 freewheel can be a very useful part to have around, hence the high prices.
Thanks, Bob, for posting those pic's.