Wow, thanks for that incredibly well written post. I totally understand what you are saying now.

Thank You Derision, learning that is making sense now :)
I guess I can just leave them all at 4294967295. For myself, I would be using
the UF client all the time on my own server, but for future, I like to keep the
options open for all clients, just in case, for other people's clients.

Afraid I have just one more question.

If I were leaving PoK for let's say Freeport. I could put two zone points right on top of each other, with two different required clients. Would that work ? Ones supposed to be going to the old FP would go there, ones destined for the new Freeport would go there ?

Derision, I noticed since my last PEQ update I cannot zone from NeriakA to Nektulos without it going into a zoning loop, this is with SOF, SOD and UF but TIT works fine. I ran this SQL, after my PEQ update and restarted the server, no go. Ideas ?

Sorry to necro, but does anyone have a technique to make all the zones go to the old zones 'nro instead of northro, oasis, ecommons instead of commonlands', etc.

would it be possible to just replace all the 4294967292 entries with an invalid entry like 666, and then set the titanium zone entries (3) to 4294967295 ?

TLDR; no

These old zones do not exist in the RoF client anymore. The files are not in the download.
For prior clients, you can do some of the work with the zone point masks. Some of it will require the players to rename files as both zone files exist in the EQ directory with the same name, just the new extension. In those cases, the client itself will never use the old version if the new zone file is there.