in the perimeter of the clubhead.INCLUDES A FREE HEADCOVER Attached is an independent driver review conducted by Golf Magazine in the US (covered on May 8th), using the Hot Stix launch monitor.The clubs tested included: Burner, MP-600, Hi-Bore, FT-I LCG, Hyper X, 907 and Exotics.It will come as no surprise to you ... »more info