I am looking for a comfortable and ergonomic mouse. I spend long hours with the mouse for work. Currently using the Razer Imperator, which is pretty comfortable, but looking for a change to something better. I generally use a palm grip, but not the standard variation where the wrist is fixed and the forearm moves things - I use my wrist, forearm constant like in fingertip/claw but I still use my whole palm. I need a certain amount of precision so I find this the best compromise between comfort and accuracy. In certain high precision situations I drop the DPI way down and switch to the traditional fingertip grip. 1600 DPI to 2000 DPI is enough for my usage, need a high polling rate, no need for extra buttons or any special requirements. The main criteria is comfort. Budget is flexible but of course looking for the best value for money. Thanks for your suggestions in advance!