I have never used this string or any of the other big banger strings and was wondering what is the main difference between this string and cheaper ones. I have mainly used Forten Polyblast 16, Forten Sweet 16, and Gosen Polylon Ice 17. Also I like using the polyester string and have it strung at about 55. The racquet I'm using is a Head LM Prestige MP. Should I string the racquet higher or lower with the BB Ace?