I honestly prefer the G50X body. However I have read it is not built to the quality of the 903. Plus I read the scroll wheel is still sloppy. Apparently they put the spring hinge main buttons though on the 502? My friend wants to trade but I do not know if the G502 is actually a better "built" mouse. Notwithstanding right handed I am concerned about the quality. The Proteous spectrum was not the quality of the 903. Did they bring the quality of the 502 up to 903 level? Thanks
