Currently I use the Donnay Gold dualx 99 in stock form. It is 11.5 ounces 16x19, 67stiffness. I like it for the most part but I've decided to switch to a 18x20 pattern because of the string I use (multifilliment) breaks in about 8 hours of play. Im hoping the 16x18 will get less movement and life out of the strings. Maybe hopefully more control aswell. Anyway Ive recently picked up 2 of the Head rad youtek Mps and Im trying to decide how to weight them. Im thinking of weighting them up to 11.5 but thats why I am here. Should I keep the stock to begin with? Should I weight them heavier? Im 5'11 160lbs, I play 5xa week, and cross train w/ weights. I am 25yrsold.