If you put the same energy into your stoke you'll move a lighter cue faster, a heavier cue slower, and they'll produce the same CB speed/spin.
Energy in = energy out. Cue weight is just the delivery method.
And (if true) that would require different energy input which, "translated" through cue weight, would result in different CB speed/spin.He specified later that the stroke speed is the same
But it's easy for a player to think the same energy output produces the same stroke speed, which isn't true for different weight cues - knowing the difference might help understanding.
pj
chgo