hi i have 2 sets of rpm team and im wondering if i should use that as the mains with the prince premier attack on the cross, or should i use a different poly? I just dont want to keep restringing because the rpm might die quickly. My game is hitting with a lot of topspin and i mostly stay on the baseline. The racquet i use is a Babolat Pure Drive 2012. Should i just stick to the RPM Team or buy a poly that wont die as quickly? What would be a good poly that is durable and that holds tension well?