Actually, I have made the same decision a couple of weeks before. I have bought the razer basilisk ultimate, based on the much video and comparsion I have found. But my grip type is fingertip, and after a few days of usage, it revealed, that to my hand, the razer's sniper button is too far on the left side of the mouse, it is not natural to my hand position. So I have returned the basilisk ultimate, and now I am going to try the Logitech, today I will take it over at the shop, and will see actually how comfortable. Yes, I am a bit afraid of the double click issue. But regardless of that, if the logitech seems to be the same or worse, I will reorder the basilisk ultimate and send back the logitech too.