Guys, Recently I bought a RDX 500 Plus and I was wondering which is the right string and tension for this racquet. In priority order, I'm looking for spin potential (my game style), comfort (my elbow issue) and durability (my wallet). I have no experience with this racquet, so your opinions are welcome. Note: I'm aware spin is a matter of technique rather than a brand. That's why I posted "spin potential" not just spin.