Strung one of my EXO3 Tour 16 x 18 frames with Volkl Cyclone 17g at 54# yesterday and was really pleased with the results.
A touch more control than the Big Hitter Blue and still nice pop and awesome spin.
For me, narrowed it down between those two strings.
Volkl C10 Pro w Pro's Pro Blackout 47-55lb. Still rocking my Klippermate.