Now in order: - Replaced standard glide with tiger glide, many times better than stock. - I pasted anti-slip pads on the LKM / PKM and side buttons. - After half a year, the creaking of the buttons began, I had to disassemble and lubricate. There are two pins rubbing against the case. If you also decide to disassemble, do not lose the small springs. - Horizontal play can not be fixed. I like the mouse, especially after modifications.