After installing two 4g weights on each side of the mouse, we started gaming in CounterStrike: Global Offensive, Guild Wars 2, Diablo III but also tried a bit of Agents of Mayhem; Rival 600 succeeded to keep the comfort level optimal even 2-3 hours of continuous gaming and during this time we did not spot any erratic movement. While our lift-off setting was set at 0.5mm, players that use to lift the mouse more during the sessions should adjust the value as necessary. The main sensor (SteelSeries TrueMove 3) remains the same as with the Rival 310, but sports a more aggressive appearance, while much more RGB segments are available for configuration.