It still weighs more than polymer, maybe by a couple of ounces. Surface traction and ergonomic options aside, there is much bigger discussion about what exactly we are looking for when we discuss "recoil", "performance", energy transfer etc. Somebody else mentioned "simple physics". I bet that physics here is not as simple as people think.
Mr. Perez above is right, it is really about timers and targets. Practically, I myself have no time to futz around with different grips but I have pretty decent prior experiences with various gun weights. For me 40 to 45 oz dry weight is optimal for 9mm minor pf with no added benefit to go to 50 oz or above. In 2011 world that means aluminum grip and I honestly don't care how recoil feels.