You do get more stiffness out of a carbon boom ..if its been looked after ( 2 nd hand ) ,should be no problem
I have a alloy too.but it feels like a rag doll compare to the carbon one .
Carbon booms are great ...but expensive ..had my naish carbon for 6 years now ,still going strong .I never wash it .
with alloy ..they need washing or the white chalk and corrosion builds up
funny thing is its identical to some other bands ..
perhaps they are from the same factory ?.