Are we correct to say for the non-ejector guns, like most Fox Sterlingworths, theres nothing wrong with a snap on forearm (e.g., Hackett forearm), its plenty secure? Ejector guns, however, need a bit more security like a Deeley latch mechanism.
Usually, not a problem. Until you hook a branch going through the woods... then it would be a big problem.
An Anson latch could do that too. I had one come off shooting skeet, so stuff does happen. One of our local shooters here lost a lock plate in the woods off an AyA #1. Never found it, and it took years to have one made and the gun took not one but two trips to Spain before they got it semi-right.
No reason to pass up a nice example Sterlingworth. This was an economy model Fox.