I was kind of skipping this thread after the first few posts. I have a look now and it turned into a joint pin / joint type discussion.
I have not read every post in this thread so forgive me if this link to an old thread was already posted.
It always reminds me of this:
https://forums.azbilliards.com/threads/blind-joint-type-test.494485/#post-6405886
Rhetorical questions/topics:
Wood pin cues are unusual in pool, but common in carom.
Brass joints are uncommon in pool (except junk cues), but common in snooker.
The Layani conical joint face is interesting.
Then, of course, alternative materials for inserts like phenolic materials (modern Joss for instance) and nylon materials (Huebler and Adam for instance).
Robinson cue joints were interesting. Remember pictures of him standing on the cue joint of a cue suspended between two chairs?
Schuler joints are interesting.
Have all these been banged around? (pun intended)
Fasteners are an entire field of engineering. How a cue feels is closer to black magic and preferences are 100% subjective.