I'm a chronic string breaker. My rackets are the 80's Kennex Black Ace (54 stiffness, 14+ oz) and Yonex RD-7 (low 50's stiffness, and lead up to almost 14 oz). I've tried Cyberflash @ 54lbs. While it's a durable string, it felt as though the ball just doesn't "stay on the string bed" long enough. Thus, I'm looking for a poly that would provide me with a greater dwell time and a more pocketing effect. I just ordered some Blue Gear. Please help with your suggestions.