Got one yesterday. Something I noticed is that the thumbwheel seems different from my other 3 I have had for a long time. Hard to explain but here goes............Seems like the thumbwheel needs a little more pressure to activate the feature you are trying to activate. Also it seems "spongy" when it bottoms out. I also noticed that the width of the thumbwheel does not fill the intended slot in the black plastic opening designated for the thumbwheel. Not saying this is a problem but it is just differnt. I have not tried it yet on the layout. One thing that concerns me is that I am wondering if the thumbwheel is a cheaper version in the new handheld than in previous runs. So is it likely to break easier?