hmm now when I w8 for m8000x I cant tell something abaut my old mice. 1th whuch i buy for games was IE 3.0 was ryly great mice by 1 year, after this time something inside just stop work but o can tell that is good and confortable mice for big heands like my:D Next was legendary MX518. uff over 2 years great game with this mice also perfect for my bg heand. no signal lost ease softweare but got one defect for Me. After long game whn heand was sweat game stopt be confortable. Just shit body I think. this one I damege too Next was A4tech x750 hihi. I have this mice over 2 weeks and fast sell... Why because don't feel godd with this small...tiny mice. Just terrible. after 2-3 h playing dont feel my courves fingers to small for me. And now from long time got G9 till she not meeting with my flor everything was good. Very good is that change body. this mice is confortable for all heands i think. softweare like on all LOgitech work greatjust nice mice ... but got one big minus from me!! Wy?? because when try very fast move szhe lost contact with steel. It's not good to granadjum. Just hate g9 for this. Dont know maybe they fix this on g9X. Dunno . I just forgot. IE 3.0 work on QcQ steel A4tech and G9 on SteelSeries 5L and I can got 10/10 for 5L many mice work just great on this model.

Now Im waiting for gigabyte M800X and tell something more after 1 week test hope for 2 days I got It