I think what I carry around is ideal, while not being excessive.
Predator Blak 3x5 case with ...
Break Butt and Player Butt
Use the third "butt hole"
for two extensions (4" and 8") and the 4" extension of my jump cue (OB Lift)
5 Shaft holes --- Main playing ld shaft. Exact same older backup playing shaft. Player's original non-ld shaft. Jump shaft. Break shaft.
And the jump butt in add on side pouch. (Old Bungee labeled one that works great for what it is)
I do have two nice, but not very expensive cues I used to play with in the rack at home.
Predator Blak 3x5 case with ...
Break Butt and Player Butt
Use the third "butt hole"

5 Shaft holes --- Main playing ld shaft. Exact same older backup playing shaft. Player's original non-ld shaft. Jump shaft. Break shaft.
And the jump butt in add on side pouch. (Old Bungee labeled one that works great for what it is)
I do have two nice, but not very expensive cues I used to play with in the rack at home.