I shoot all our grandkids indoor sporting events, basketball and volleyball,, school and church gyms can really test your skills when it comes to decent WB,, they often even use different bulbs in one end of the gym,, I was sure getting tired of trying to adjust he Kelvin as none of the cameras (Oly E3) various WB settings would work,, talking with a fairly successful wedding photographer using Nikon gear he recommended the ColroRight,, he indicated he tried the others and would still have some issues,,
I purchased one and shot three games the same weekend and what a difference,, I saw it immediately in the first gym while shooting my pregame photos during setup,,,, so quick and simple to use,,
cannot compare the ColoRight to any of the others as never used them but certainly happy whith what it provides me,,
Derry