I just sold a 45 pound Montana a few days ago. Picked it up about a month ago, poundage was too low for me and didn't want to buy a bunch of lower spined arrows to match the bow. It was a 2011 model and looked just like my 07 model 50 pounder except for the limb tips. Still a great shooter and dead quiet. The grip looked and felt just like the older Montana, "blocky". The only difference I could see was that the limb tips were much thinner (reduced mass), should perform a little better than the older design. Putting a 12 strand D-97 string on my 07 model made it perform much better.