I rode alum for years and loved it...until I built my carbon. you should try one out at a shop that will let you take it out for 10 miles or so. some of the feel will come from the particular wheelset but you will notice the aluminum bounce for sure.
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2010 Kestrel RT900SL, 800k carbon, chorus/record, speedplay, zonda
2000 litespeed Unicoi Ti, XTR,XT, Campy crank, time atac, carbon forks