I watched it and Chris made mention of 900G's high Rg balls not being what he would like to see or some such wording and that of the high end 900G balls the Respect (length and angular) is the one he liked the best.
He had nothing bad to say about EBI/C300 but did say he didn't like the look the asymmetrics gave him.
One would have to believe that being able to use Storm/RotoGrip in qualifying will give him an edge he hasn't had. Though he did say he'd prefer to use 900G and likes the 3G shoes.