Slingshot PFI 730/872 Lower Package V1 windsurf foil combination. Slingshot PFI 730/872 Lower Package V1 windsurf foil combination. We wanted the perfect lower for maneuver-oriented windsurf foiling. The result is this package of PFI 730 Front Wing, PS 400 Rear Stabilizer and 872 Fuse. The PFI 730 front wing is a polished, refined and scaled-down version of their most popular wing to date, the Infinity 76. It delivers better pumping, better jumping, higher top speed and tighter radius carves, all while retaining that shaped-in downforce in the wingtips, which prevents you from over-foiling at high speed. The 872 Fuse is the perfect blend of stability and reactiveness, and the PS 400 Rear Stabilizer gets going in light winds and delivers amazing efficiency. High top-end speed Built-in downforce in the wingtip to stop you from over-foiling at speed Incredible turning ability Extended flat spot for more lift and better pumping Safety winglets 872 fuse for stability PFI 730 front wing The Performance Freeride Infinity (PFI) 730 is a high-perfo