HEAD updates one of their most iconic racquet families with the Graphene 360+ Radical MP Tennis Racquet. The easiest change to spot is the more rounded head shape of the 98 square inch head. Though it retains the 16×19 string pattern from the previous model, the new MP is much more precise with a slightly denser string alignment. The variable 20/23/21 millimeter cross section is a little thicker than on the Radical Pro for a bit more power.