Flexy racquets like the C10 should take to polyesters pretty well. It wont feel too crisp, but will definately be stiffer than a softer syn gut/multi. Any string will work, really; it just depends on what you prefer. I think the *worst* thing you could put in a C10 would be something super soft (Sensation? More Feel?) You wouldn't feel a thing....
Volkl Tour 10 V-Engine MP