G403, g303, FK1/2, ec2/1a, deathadder, all top mice with top sensors. Theres like one kid who plays pro with acceleration and he uses the acceleration in game.
Mouse "acceleration/deceleration" is just tracking errors.
If your referencing the max acceleration 20g is ok, 40g is what the new logitech mice are. Max acceleration is how fast you can move the mouse with out having said errors.