Well, I am a "cue guy". I know who can build what, and how. Sadly we have lost some wizards.You won't find 2-3 cuemakers that can make a cue with My specs that is 496 grams!
Cored or Not!
Plus I believe the materials they use to 'Core' a cue is Heavier than the BEM!
ICBW!
Either way, as a 'Player' I know what I need/like/feel to play at the Top level!
Coring can consistently reduce the BEM weight by 0.5 to 1.5 ounces depending on the bore diameter. BEM is best cored anyway.
But you responded before I edited so I will add that here:
EDIT: I realize the point may be moot because we are not talking about modern cues. So, if you were actively a pro today, would you maybe seek to have a fatter cue constructed that didn't need 3? Or would you like the option to change it up by adding or taking away layers anyway?