ferrule change to reduce squirt/deflection

if i move from a 11.5mm x 1inch long, phenolic ferrule to a lighter
thermoplastic ferrule of the same dimnsions - how much reduction in
squirt can i honestly expect?

the phenolic really looks nice but with a 11.5 tip and long conical
taper i was expecting less squirt than i'm getting.

Is there any way to shorten the ferrule without shortening the
effective length of the shaft/cue? i honestly don't understand the
tenoning process.

i've also heard of thinning the wall of the ferrule. but this one is
already pretty skinny if not thiin.
TIA, and happy thanksgiving.

darren