I have a first gen surface pro and type cover. With the following covers: - 1st gen touch - 2nd gen type - 2nd gen touch and my surface pro (tried these in a microsoft store paired with my surface pro), when you do the two-finger scroll on the trackpad, there is some 'momentum' after you take your fingers off the trackpad. If you flick your fingers faster, the screen scrolls faster. However, this behavior does not occur with my 1st-gen type cover. Does anyone else notice this? Is this just an issue specifically with the 1st-gen type cover or is there a software setting that would enable the 'momentum' scrolling? It seems weird that only one cover would lack this feature.