Quality is all over the place. The top models S Safari and S Speedsix were handbuilt in the stable block behind the Hall (Dr. Moulton's mansion) and were as finely crafted as anything being turned out of a contemporary small custom shop in the UK. Some of the subcontracted entry-level machines are cursed to this day by Moulton rebuilders* who have to grind, patch and rebraze the ~60-year-old machines to make them safe and reliable for a new generation of owners.
*Yes, that's a thing.
Got any closeups of the joints on your Safari? Really curious now - makes me want to dig up an S-spec F-frame with an IGH. Took me long enough to dig this one up though, so I think I'll be placated for the meantime
I'm not surprised the subcontracts are a mess. The dropouts on my Huffy Mk.1 are brazed only on the bottom and the inside - the top is a void on both sides. Intentional. Swingarm tube mount is only welded halfway around too; just a mess all around and definitely worthy - if not below - Huffy status.
-Kurt