I strung my racquet with Signum PPP (1,23) on mains 53 lbs and Signum High tec multifilament (1,25) on crosses 55 lbs. Perfect blend of power, feel and comfo. I hope the durability is good too. The maintainance of tension should be good according to reviews. Seems to work well with a stiff racquet and the best combo I tried so far. ...just wanted to share this with you all.