EDIT - Just reweighed it, the grip weighed more than i thought, the actual weight is 2.8 and a bit.....even so, still not too bad.
Tom - i cant answer your question, but the two bats which you mention had very little/no concaving whereas my bat does, this could explain part of this anomaly. Secondly, the cleft i have has such a low density that perhaps pro's require something with a little more density/strength, this bat may break after ball one or last me two/three years? I really dont know though if i'm honest with you.....ask Mike if i was you.