Irons
Old Irons: Better-player cavity-back, 4-GW, steel shaft, stiff flex, standard length, standard grip

Hot Stix says: Shots come out too low. Frank shuts the face at impact to counteract a slicing problem. His natural draw can also turn into a hard pull. The lie board confirms that 1° flat lie angle is too flat for him. The lofts and shaft stiffness seem arbitrary (see charts at right). We recommend that he increase the loft by 3° in long irons, 4° in mid irons, and no more than 5° in short irons and wedges.

New Irons: Mizuno MX-25, 4-GW, Nippon 95 steel
shaft, 3.9 freq., std. length, Winn DSI6 midsize grip

Hot Stix says: Frank hits these straighter, higher,
and farther. The 2° upright lie angle complements his naturally steep swing. Switching to clubs with proper lie and flex should corral his pull shot. Frank will see improved consistency in direction and distance.