Try Spiky Shark or ALU Rough. Both a crisp and I find them very spin-friendly. The crispness helps me with control and I get all of the spin I need with them.
I've never had an issue getting spin out of the C10 Pro. It does play lively and depth is very easy to generate. When transitioning into the C10 Pro I had to bump up my reference tension 5lbs to maintain confidence in control.
Having used the racquet now for an extended period, I'm dropping back down to 52lbs with strings like Spiky Black Shark.