I think boring a hole in the tip end of the shaft is most effective. My 10mm tip is hollowed and I also had a small (1/4” long), thin ferrule installed.
Works great (20” pivot length).
pj
chgo
...remembering that the "equator" and the miscue limit are tilted up like your cue.
Also, for best tip "grip", probably want to avoid the hardest tips, like phenolic.
pj
chgo
"Preferences" in our tastebuds.
(P.S. I remember you have no problem with peoples' preferences, so this isn't a clash of principles - just scientific nitpicking. :) )