Unfortunately, unlike the M555b no free-running scroll more

I use the laptop for a Logitech VX Nano for several years a Logitech M555b and got used already in the VX Nano to the freewheeling Scrolrad making scrolling in long documents in my opinion much more pleasant. At that time came, among others, for this reason only the M555b as Bluetooth mouse in question and I was with her so far on Windows (7/8 / 8.1) and Linux always satisfied. Now I have bought me a Windows 8 tablet and it was annoying me to the mouse again and again with the tablet and then to couple with the laptop so I've decided to buy a second Bluetooth mouse. Since I have been always satisfied with the Logitech M555b I think without gros about their successors who bought Logitech M557 and had immediately after unpacking find that the genius scroll wheel no longer exists unfortunately. But since I can scroll to the tablet is also quite good and pleasant touch screen and the mouse pre-especially if I use I can do something with the Bluetooth Tastaur write life on the tablet with this stigma for the laptop but I would probably not keep the M557 but return and even try a Logitech M555b get.