Nate7-5
Hall of Fame
Could be PTP Graphite. Dunno. None of us can tell. It’s probably a Yonex string, though, so it’s either Pro or Strike. I don’t see why Shelton would use a budget string, and Poly Tour Pro is as good as it gets for round polyester, with respect to ALU Power.
Highly doubt he is hybriding 2 colors of PTP